Synack was named a Leader in G2's Fall 2026 Grid® and Enterprise Grid® Reports for Penetration Testing. The reviews show what customers value in a pentesting partner: visibility into testing, access to experts, findings they can fix and verify, and a partner that acts on feedback. The post What Customers Value in a Penetration Testing Partner: Insights from G2 Reviews appeared first on Synack .
Cybersecurity News and Vulnerability Aggregator
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treemd <(curl -sL https://allsec.sh/md) (as Markdown) Top Cybersecurity Stories Today
Threat actors have weaponized a now-patched security flaw in Zimbra Collaboration Suite (ZCS) to deploy web shells and access mailbox data, according to findings from the Microsoft Security Research team. The attack exploits CVE-2026-73570 (CVSS score: 8.9), an unauthenticated operating system command injection flaw that can lead to remote code execution when Simple Network Management Protocol
Traverse barriers and checkpoints in the occupied West Bank—your choices reflect the reality of nearly 3.5 million Palestinians who live there.
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a critical authentication bypass flaw impacting Cisco Catalyst SD-WAN Manager to its Known Exploited Vulnerabilities (KEV), following reports of active exploitation. The vulnerability, tracked as CVE-2026-76504 (CVSS score: 9.8), could allow an unauthenticated, remote attacker to access an affected system with
Threat actors have been observed exploiting a critical pre-authentication command injection vulnerability in Citrix NetScaler ADC and NetScaler Gateway to drop web shells and attempt theft of configuration data. LevelBlue's Threat Hunt Operations & Research (THOR) team, which analyzed the exploitation activity across multiple customer environments, said it identified malicious NetScaler
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Friday, October 2
Synack was named a Leader in G2's Fall 2026 Grid® and Enterprise Grid® Reports for Penetration Testing. The reviews show what customers value in a pentesting partner: visibility into testing, access to experts, findings they can fix and verify, and a partner that acts on feedback. The post What Customers Value in a Penetration Testing Partner: Insights from G2 Reviews appeared first on Synack .
The U.S. Cybersecurity and Infrastructure Security Agency (CISA), on Thursday, added a critical security flaw impacting Fortinet FortiMail to its Known Exploited Vulnerabilities (KEV) catalog, following reports of active exploitation. The vulnerability, tracked as CVE-2026-104286 (CVSS score: 9.8), allows unauthenticated attackers to write arbitrary files on the underlying system. "An improper
Thursday, October 1
I've been picking through a SCADA-style telemetry capture and I can't explain what I'm seeing. The file has 14 authorisation records, each with its own CRC. All 14 validate. The file header carries a CRC-32 over the whole block, and that one fails. Two of the operator-name fields are zeroed. My reading is that someone blanked those fields, recomputed the per-record CRCs so they'd pass, and never touched the block CRC. But I'd like a sanity check — is there a corruption mode that breaks a block checksum while leaving every record checksum intact? File (8.8MB): www.[st88openocean.github.io/slip-three/MCA-CTL-0314-RAW.slice](https://st88openocean.github.io/slip-three/MCA-CTL-0314-RAW.slice) Published digests for it are here: www.[st88openocean.github.io/slip-three/archive](https://st88openocean.github.io/slip-three/archive)
I started a blog series to provide free insights into appsec. It’s mainly to breakdown what application security is all about and it’s mainly targeted towards beginners and startups, so take it as you will. I want to teach every one interested in appsec my perspective on it from my experience in big tech. In this blog post we talk about how to do “proper” threat modeling and it isn’t through a framework! Please reach out if you have any questions or would like for me to write on a topic that you’d want to learn more about.
FELG Software sp. z o.o., the Polish maker of the FELG Dent application for dental practices, told customers on October 1, 2026, that it had been attacked. In a statement on the company's status page, CEO Grzegorz Stawarz said an attacker claiming to belong to the "Fingerprint" group may have accessed patient data that dental practices had entrusted to FELG for processing. The attacker says he holds about 10% of the database and wants a ransom to keep it unpublished. FELG has notified the prosecutor's office and contacted UODO, Poland's data protection authority. The company's preliminary estimate is around 2 million affected patient records. That figure is based partly on the attacker's own claims. The records include: * names, addresses and PESEL numbers (Poland's national identification number) * medical data * information related to e-prescriptions * e-ZLA records (electronic sick-leave certificates) * eWUŚ checks (the system practices use to verify a patient's public health insurance) FELG notes that the number of records doesn't necessarily match the number of people. It expects results from its log analysis within a few days. The company says it knows how the breach happened but won't disclose technical details. # What the attacker claims The attacker, who calls himself Horus, contacted two Polish IT security news sites, Sekurak and Zaufana Trzecia Strona (Z3S). He told Sekurak he had data on 2.4 million [felgdent.com](http://felgdent.com) patients. He said this included PESEL numbers, names, addresses, phone numbers, NIP tax identification numbers and each patient's dental practice. He also claimed 1.2 million prescriptions, visit records, e-ZLA records, eWUŚ tables, files and photographs. He also claimed 712,000 staff records. FELG denied that figure immediately, and he lowered it to 28,000, blaming duplicate records. Sekurak received a sample of data on several well-known people but could not confirm it was genuine, since it might have come from earlier breaches. Z3S gave the attacker the PESEL numbers of eight people who had agreed to the test. None of them were in his database. According to Z3S, Fingerprint had nothing to do with the attack, and the group itself confirmed this. The attacker admitted to Z3S that he had brought up the attacks on MyDr and Medyc when talking to FELG to make his ransom demand more intimidating. His account of the method is a textbook IDOR (insecure direct object reference) flaw. He says he created a demo account and found API endpoints that didn't check authorization. By incrementing a query parameter, he could pull successive patients, prescriptions and doctors. He says he started downloading data on September 6. FELG told Z3S it learned of the incident on September 28 at around 6 p.m. The attacker also says the attack was spotted after several days and the faulty endpoint was fixed. He claims he then found other endpoints with the same flaw and kept using them for a while. None of this is verified, and FELG isn't commenting on technical details. Because FELG broke off negotiations and went public, he says he will sell the database on Cebulka, a Polish-language dark web forum. # How big is FELG? Sources disagree. Sekurak cited 16,000 dental practices. FELG's website claims more than 4,000 practices, more than 16,000 doctors and hygienists, and more than 12 million patient records. Z3S, also going by the website, reads the 16,000 figure as dentists using FELG's tools. Z3S says the leak may involve more than 2 million people. In its statement to Sekurak, FELG spoke of about 2 million records. # What affected practices should know Under GDPR, a practice using FELG Dent is the data controller for its patients' data, and FELG is its processor. FELG has asked customers not to report the breach to the President of UODO (the head of the authority) until it formally confirms whether a given practice is affected. After the weekend, affected practices are due to receive a ready-made UODO notification and a free tool for notifying patients. The other practices will get confirmation that their data was not affected. Article in Polish here: [https://pelnomocnikcyber.pl/aktualnosci/felg-dent-incydent-dane-pacjentow/](https://pelnomocnikcyber.pl/aktualnosci/felg-dent-incydent-dane-pacjentow/)
TV Box Sentinel v2.0: Open-source network monitoring and heuristic threat detection for compromised Android TV / IoT devices
Hey everyone, I wanted to share an open-source project I’ve been developing: TV Box Sentinel (v2.0). The Problem: A widespread issue with uncertified Android TV boxes (often powered by Allwinner, Rockchip, etc.) is factory-installed malware residing directly in the /system partition, as well as botnet loaders (such as Badbox, Peachpit, Triada, and Guerrilla). Since on-device antiviruses are untrustworthy once the firmware itself is compromised, threat mitigation is most effective from the network perimeter. Approach & Architecture: TV Box Sentinel audits and detects indicators of compromise (IoC) non-intrusively from the network perimeter: \- PCAP / PCAPNG support: Parses network traffic and router logs. \- Heuristic Engine: Identifies beaconing, anomalous traffic, C2 communication, lateral movement, and cryptojacking patterns. \- Automated Mitigation: Generates firewall and DNS sinkhole rules to block malicious endpoints. \- Reports & GUI: Generates HTML/PDF executive audit reports and features a tabbed UI. GitHub Repository: https://github.com/2kw-josue/tv-box-sentinel Would appreciate any feedback, suggestions, or contributions from network and blue team folks who deal with rogue IoT devices on local networks.
Traverse barriers and checkpoints in the occupied West Bank—your choices reflect the reality of nearly 3.5 million Palestinians who live there.
Before you build an AI pentesting agent, run it through 5 tests for production readiness. Mark Kuhr breaks down what separates a prototype from a system. The post Build or Buy AI Pentesting? 5 Tests to Judge Production Readiness appeared first on Synack .
Police in Spain have arrested a 16-year-old whom investigators suspect of running the KillSec ransomware group. KillSec is accused of stealing data from organizations and threatening to publish it on its leak site unless they paid. The 16-year-old was one of 3 people arrested on September 30, when police also took control of that site. Investigators identified him as KillSec's suspected
This week, the useful words are boring ones: inspect, cache, compile, store, trust. Each sounds harmless. Each can become an attack path when a system does a little more than people expect. A model check can run code. A cache can mix up requests. A public secret can stay useful for years. That is the lesson running through the list. Attackers do not always need a brilliant new trick. They can
A blue-team writeup on detecting a compromised MikroTik from its own config. Seven techniques, each with the collection command, the artifact it leaves behind, and a triage step. Feedback welcome.
Cybersecurity researchers have shed light on a WordPress compromise in which threat actors deployed multiple persistence mechanisms to ensure that the final payload kept returning without having to infect the site again. The backdoor has been codenamed SC after the "SC_" markers present in the injected content. Sucuri has described the malware as a "self-healing mesh" that's
Overview An Out-of-bounds Write vulnerability in the InsydeH2O IHISI software used by HP PC BIOS can allow a local attacker with OS kernel privileges to perform arbitrary physical memory writes, including writes to System Management RAM (SMRAM). Because the vulnerable code executes in System Management Mode (SMM), successful exploitation can allow an attacker to modify SMM-protected memory and potentially achieve arbitrary code execution in SMM. Depending on the platform's memory and firmware configuration, the arbitrary physical memory write primitive may also have implications for UEFI firmware update or flash-related operations. Description HP PC BIOS is firmware that initializes and manages hardware components during the boot process and provides runtime services to the operating system and provide the ability to update firmware. The affected system uses InsydeH2O Kernel version 5.5 or earlier. The BIOS includes custom HP SMM handlers that execute in System Management Mode (SMM), a highly privileged CPU execution mode that is isolated from the operating system. CVE-2026-12855 : An Out-of-bounds Write vulnerability in the H19WMIHandlerSmm module (GUID f1946499-571b-44c3-9b9c-cc55210b0c02) allows a local attacker with OS kernel privileges to read or write arbitrary physical memory, including SMRAM, through a Software SMI handler. An attacker with kernel-level privileges can trigger the vulnerable SMM handler by issuing a Software System Management Interrupt (SMI) through I/O port 0xB2 and supplying specially crafted CPU register values. The vulnerable handler does not adequately validate the supplied parameters before performing memory operations, allowing the attacker to influence the physical address and data involved in the operation. Because the affe
Benedict Jones spent years working for McAfee and Sophos. While doing threat research at Sophos, he spotted a problem in mobile threat defence that nobody had actually fixed. He’s now CEO and founder of Trustd Mobile, and the story of how he got there says more about MSP buying decisions than most vendor pitches ever […] The post Innovation wins. Why smaller beats bigger appeared first on Heimdal Security Blog .
Every security leader at a bank, insurer, or asset manager has had a version of this conversation: Security wants to eliminate a class of vulnerabilities. Engineering explains what it would take to upgrade the platform where they live. Somebody prices out the regression testing. Somebody else raises the change-freeze calendar. The finding gets an exception, a compensating control, and a date
OpenAI on Wednesday said it identified and disrupted a coordinated distillation campaign that was designed to illicitly extract protected reasoning from its artificial intelligence (AI) models. A "core cluster of the activity," going back to the first week of July, has been attributed to individuals associated with Moonshot AI, a Chinese AI company based in Beijing. It did not cite any
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a critical authentication bypass flaw impacting Cisco Catalyst SD-WAN Manager to its Known Exploited Vulnerabilities (KEV), following reports of active exploitation. The vulnerability, tracked as CVE-2026-76504 (CVSS score: 9.8), could allow an unauthenticated, remote attacker to access an affected system with
In an exclusive interview with WIRED, Paragon Solutions CEO Andrew Boyd reveals the limits of the company’s promise to keep bad actors from abusing its powerful espionage tool.
Google on Wednesday announced its latest frontier artificial intelligence (AI) model, Gemini 4 Argon, that it said is being rolled out to a set of trusted cyber defenders through its Fairwind Program. "It delivers frontier performance in complex workflows across real-world software engineering, enterprise knowledge work like legal and finance, and cybersecurity defense," Koray Kavukcuoglu,
London, UK, 1 October 2026 – Heimdal, a global cybersecurity provider, today announced a partnership with Elovade, a European IT security distributor with 250 experts across five countries, to bring its unified security platform to managed service providers (MSPs) across the DACH region: Germany, Austria, and Switzerland. The move extends a relationship that began a […] The post Heimdal partners with Elovade to bring unified cybersecurity platform to the DACH region appeared first on Heimdal Security Blog .
Security researchers have published the first public proof-of-concept for CVE-2026-86950, an Apple CoreGraphics flaw Apple says may have been used in attacks against specific targeted individuals. The trigger is a malicious PDF with a crafted embedded font that crashes unpatched iPhones and Macs. The code causes a crash, not an execution error. Turning the memory corruption into a working
Cryptocurrency exchange Bitget on Wednesday confirmed that attackers who stole $387.5 million last week exploited a zero-day flaw in third-party security products, citing ongoing investigation findings from SlowMist. "Their investigation identified malicious activity involving third-party security products, including a zero-day vulnerability, and recovered a customized tool used by the attacker
MetaMask on Thursday said it's responding to what it described as an "ongoing security incident" impacting part of its infrastructure. "We are actively addressing and remediating the issue internally, in coordination with external partners and security advisors," the software cryptocurrency wallet maker said. "At this time, we have identified no immediate threat to MetaMask wallets." MetaMask
Threat actors have been observed exploiting a critical pre-authentication command injection vulnerability in Citrix NetScaler ADC and NetScaler Gateway to drop web shells and attempt theft of configuration data. LevelBlue's Threat Hunt Operations & Research (THOR) team, which analyzed the exploitation activity across multiple customer environments, said it identified malicious NetScaler
Wednesday, September 30
HANDLE Duplication internals : What happens behind the scenes when you call kernelbase! DuplicateHandle( )
Threat actors have weaponized a now-patched security flaw in Zimbra Collaboration Suite (ZCS) to deploy web shells and access mailbox data, according to findings from the Microsoft Security Research team. The attack exploits CVE-2026-73570 (CVSS score: 8.9), an unauthenticated operating system command injection flaw that can lead to remote code execution when Simple Network Management Protocol
Threat actors are abusing ChatGPT Custom GPTs to disguise them as legitimate product offerings and direct unsuspecting victims to malicious sites that employ ClickFix lures to deliver malware. Huntress, which observed the activity in late September 2026, said it marks the abuse of yet another feature in trusted artificial intelligence (AI) platforms. Prior campaigns have weaponized shared
Given that the browser is where business apps are accessed and used, it makes sense that attacks are happening there too. Most breaches today begin in a browser session. Often, they never leave it, with the entire attack chain from initial access to exfiltration playing out in the browser. Here are the six most dangerous techniques that should be on every security team's radar in 2026. 1.
AI coding agents asked to share screenshots of code changes for review have put internal company images in public GitHub repositories, security company Glow said. Its researchers found more than 13,000 internal images from developers at over 300 organizations, including customer billing records and screens of features not yet released. In most cases, they sat under developers' personal accounts
ANY.RUN researchers traced a US-focused CSuite phishing campaign across 351 sandbox analyses, with 51% of submissions coming from the United States. Technology, manufacturing, government, and consulting organizations showed the highest exposure. By combining Microsoft 365 session theft with remote-access tool deployment, CSuite can turn a phishing incident into broader account compromise, fraud
Tuesday, September 29
Critical RCE Alert: Full takeover of HashiCorp Vault and OpenBao. OpenBao is patched. Vault remains exposed
OpenBao engineers at [ControlPlane](https://control-plane.io/) have chained 4 vulnerabilities to show how under certain conditions, an OpenBao or Vault server can be completely compromised from an unauthenticated position. This is only the second RCE ever found in the Vault codebase. The exploit is highly plausible in real-world environments, requiring only an unauthenticated entry path and a defined Raft snapshot policy to trigger a complete server compromise. If you are impacted, upgrade as soon as possible to OpenBao 2.6.3 or 2.7.0 While OpenBao is fully patched, HashiCorp Vault remains exposed as of writing. Unfortunately, IBM's unwillingness to coordinate a mutual disclosure policy means Vault users currently lack an official mitigation
A nonprofit in California is doing what Hugging Face has not—attempting to hold OpenAI legally accountable for the actions of its agents.
This is an article about the internals of Win32k (Windows's GUI subsystem) and their callouts, with the purpose of shedding light on a very undocumented and crucial subsystem in Windows :)
As AI models go rogue, do you still trust OpenAI and Anthropic to stop them? I don’t and neither should you | Chris Stokel-Walker
The need for independent regulation grows more obvious by the day. We must keep this tech in check before it’s too late OpenAI scraps release of new model over safety concerns in internal testing Fool me once, shame on you. Fool me twice, shame on me. Fool me more than 16,000 times – as OpenAI agents did to a UN public data hub while repeatedly trying to find its way around the UN’s cyber-blocks – and perhaps it’s time to admit the system we have for keeping AI agents under control isn’t working particularly well. The news about AI systems cropping up in places they shouldn’t sounds alarming. Though the description of these as “hacks” is perhaps overstating things, AI has exploited issues in IT systems that humans simply haven’t got around to finding. It’s also important to note that we shouldn’t be worried that the machines have suddenly become sentient and decided to rebel against humanity . There is not enough evidence to suggest that’s what is happening. The systems are simply following instructions and trying to complete the tasks they have been given, even if they’re sometimes finding unintended ways around obstacles to do so. Chris Stokel-Walker is the author of TikTok Boom: The Inside Story of the World’s Favourite App Continue reading...
Monday, September 28
Overview Authlib (versions up to and including 1.7.2) contain a signature‑verification bypass in the JSON Web Signature (JWS) general JSON serialization handling. The JsonWebSignature.deserialize_json() function accepts a JWS object with an empty "signatures" array and treats the payload as successfully verified, allowing attackers to supply arbitrary forged content without possessing any key material. Description Authlib is a Python library that provides tools for implementing OAuth, OpenID Connect, JWT/JWS/JWE (JSON Web Token / JSON Web Signature / JSON Web Encryption), and other modern authentication and authorization standards. It’s widely used in web applications and microservices to handle token creation, cryptographic validation, and secure communication. As discussed in CVE-2026-96760 , a security flaw in Authlib’s handling of JSON Web Signatures (JWS) makes it possible for an attacker to skip signature verification completely. Normally, a JWS should include at least one valid signature to prove the data hasn’t been tampered with. However, Authlib’s deserialize_json() function mistakenly accepts JWS objects even when the "signatures" section is an empty list. Because the function starts by assuming the signatures are valid and never performs any checks when the list is empty, it ends up treating unsigned data as if it were properly signed. This means an attacker could provide a JWS with no signatures, and Authlib would still treat it as trusted. Both ways of loading a JWS in Authlib are affected: jws.deserialize_json({"payload":"...", "signatures":[]}, key=None) jws.deserialize('{"payload":"...","signatures":[]}', key=None) Impact A
It's called Click Scout - you hover over the link or email sender, and it tells you if it's safe or not. Were gonna push it out to a couple of our repeat offenders at my company. 100% free, just built it to help fewer people get suckered into clicking on stupid stuff. [https://chromewebstore.google.com/detail/clickscout/ekmbgkphebegmfflhfceppmpcheldfak?hl=en-US&utm\_source=ext\_sidebar](https://chromewebstore.google.com/detail/clickscout/ekmbgkphebegmfflhfceppmpcheldfak?hl=en-US&utm_source=ext_sidebar)
Authorities in the Netherlands have arrested a 24-year-old convicted cybercriminal on suspicion of aiding in data thefts and extortions by the prolific hacker group ShinyHunters . In the days immediately following the suspect’s arrest, remaining ShinyHunters members dramatically escalated their attacks, stealing highly sensitive data from the FBI and extorting the Russian ransomware group Cl0p . According to three sources familiar with the matter, the Dutch man arrested by authorities this month is Pepijn van der Stap , a convicted cybercriminal from Almere and Lelystad in the Netherlands. Van der Stap was previously convicted in 2023 in connection with a string of data thefts and extortions that prosecutors said earned between €1.5 million and €2.7 million. At his trial in late 2023, van der Stap admitted that he lived a Dr. Jekyll and Mr. Hyde existence, secretly using the hacker handle “ Umbreon ” to extort victims and post their data on English language hacking communities like the now-defunct RaidForums and Breached. By day, however, van der Stap was working as a software engineer at the Amsterdam-based cybersecurity startup Hadrian , while volunteering at the Dutch Institute for Vulnerability Disclosure (DIVD), a nonprofit security research group.
Proton Mail confirmed and paid for an email-spoofing bug, then left it unfixed for 16 months
Sam Altman says the company “have not been as fast as we would have liked” at dealing with security breaches, after news of further incidents over the summer forces another temporary halt.
God damn it, we're back in the room again. Yes, that sound in your ears is screaming. The footgun has gone off again, shockingly, and we are yet again dealing with a situation where the entire world apparently knew about Citrix NetScaler CVEs before Citrix had woken up or bothered to acknowledge them. https://www.citrix.com/blogs/2026-01/security-by-design-proven-by-action-with-citrix-netscaler On Saturday, we took our role in the industry seriously - by rapidly adding credibility to the rumors via the (inter)national authorities that we've historically worked with, and then broadcasting that increased confidence to the watchTowr client base and the public. We made the call that our language needed to be clear: given active exploitation in the wild and the critical nature of many of the organizations that run NetScalers, appliances should be taken offline, and that this was "going to be bad." We we
Presently sponsored by: If an AI agent caused an incident tomorrow, what evidence could you produce? Origin and analyst firm SACR answer it live Oct 1. Register. How's that view?! With NDC Oslo now done, it's a little bit of sightseeing before heading to Denmark for GOTO in Copenhagen for Scott's and my "Cyber-broken" talk. In the meantime, this week is mostly about the ShinyHunters trajectory targeting both Cl0p and the FBI, which does feel a little like a crescendo in their activities. Time will tell, but poking the feds in this way doesn't seem great for your longevity. In my disorganised travel state, I also forgot to touch on a brand new sponsor for this week and the weeks to come: Origin . They build tooling to monitor what your AI agents are doing, which is obviously pretty timely given the current climate. They're running a free CISO briefing on 1 Oct , so go check that out if you think maybe your agents might need some oversight.
On 24 September 2026, a malicious cyber actor (MCA) used 149.104.78.141 to attempt zero-day exploitation against a Citrix NetScaler Gateway. At the time, there were no CVE-specific detections for the attack due to it occurring pre-disclosure. However, GreyNoise still detected and labeled the activity as fundamentally malicious within seconds due to behavioral detections.
Saturday, September 26
In an era of increasingly sophisticated AI-fueled scams, a retro threat may be lurking in your mailbox.
Friday, September 25
A U.S. Army soldier who pleaded guilty to hacking into multiple telecommunications companies and stealing mobile call and text metadata for more than 100 million AT&T customers in 2024 was sentenced to 70 months in federal prison today and ordered to pay nearly $300,000 in restitution to victims. One of several selfies from the Facebook page of Cameron Wagenius. Cameron John Wagenius , 22, was stationed at a U.S. Army base in South Korea when he adopted the cybercriminal persona “ Kiberphant0m .” Working with three alleged co-conspirators, Kiberphant0m downloaded data from several large customers of the cloud data storage service Snowflake that had exposed credentials and did not enforce multi-factor authentication (Snowflake has since mandated MFA on all accounts). In October 2024, Kiberphant0m bragged on the cybercrime forums that he’d stolen the call and text metadata (e.g. source and destination number, timestamp, duration, etc.) for tens of millions of AT&T customers. Kiberphant0m claimed to have hacked into more than dozen telecommunications companies worldwide, including Verizon’s Push-to-Talk business, and publicly extorted these companies in exchange for a promise not to publish the stolen data. In late November 2025, KrebsOnSecurity warned that Kiberphant0
Overview Three cross-site scripting (XSS) vulnerabilities identified in Readwise Reader for Android version 8.7.2 are disclosed. An attacker with the ability to craft malicious documents or metadata can exploit these vulnerabilities by supplying poisoned content that bypasses sanitization. Successful exploitation could allow the attacker to execute arbitrary JavaScript within the application's WebView context and compromise the confidentiality and integrity of user data, including access to stored documents, credentials, and session tokens. Description Readwise Reader from Readwise is designed to provide a unified read-it-later service that helps individuals collect and organize articles, newsletters, videos, and other content of interest into a single reading interface. It is available on multiple platforms including Android and can synchronize content across devices. CVE-2026-18311 : A stored cross-site scripting (XSS) vulnerability in the header rendering component in Readwise Reader for Android version 8.7.2 allows remote attackers to execute arbitrary JavaScript via crafted document metadata fields. The header rendering component is impacted due to insufficient HTML escaping of metadata fields such as 'doc.author' and 'doc.title', which allows malicious scripts to be stored in the user's library and synchronized to Android devices where they are executed in the WebView context. CVE-2026-18312 : A stored cross-site scripting (XSS) vulnerability in the WebView URL construction logic in Readwise Reader for Android version 8.7.2 allows remote attackers to execute arbitrary JavaScript via malicious URL metadata. The WebView URL construction for X (formerly Twitter) video fallback and iOS paywall messages is impacted due to improper escaping of URL metadata before interpola
1. Infostealers are more focused on session tokens, cookies, recovery codes, cryptowallet data that allows them to take over rather than the traditional password compromises. 2. Malicious LNK (shortcuts) still remain a popular entry point to compromises, as they allow malicious code execution 3. Large increase in abuse of legitimate platforms or impersonation - SEO poisoning, malvertising, fraudulent codesigning and compromises of npm packages, VSCode extesnions 4. Supply chain attacks! Threat actors increasingly target software delivery channels like npm packages, PyPI, [Crates.io](http://Crates.io), and CI/CD publications to include malware. 5. Abuse of RMM tools continues & increases consistently! Initially, a signed tool with low detection ratio may seem legitimate, but remote management software such as ScreenConnect, Action1, Atera are vulnerable to abuse. 6. A large increase was found in legitimate sites spreading ClickFix attacks. This can be done by numerous reasons - administrator account compromise, weak password security, unpatched vulnerabilities in website building platforms (such as WordPress) that allow threat actors to take over the website and host malicious code. 7. Discord, Telegram, GoFile still remain as relevant exfiltration channels. While they do not provide as much flexibility as a regular C2 would, malware can still upload stolen data (passwords, files etc.) to it for the attacker to view. Easy to setup, used to evade detection. If you are interested in intercepting data from a Telegram exfiltration channel that malware uses, check out https://any.run/cybersecurity-blog/intercept-stolen-data-in-telegram/ 8. Dead drop resolvers are still popular! You can use it as an infrastructure layer if necessary to change the configuration. Very popular is abuse of smart contracts, blockchain infrastructure (EtherHiding) but Steam, Telegram or Pinterest profiles are a popular target as well. See full analysis at [https://any.run/cybersecurity-blog/h1-2026-cyber-risk-report](https://any.run/cybersecurity-blog/h1-2026-cyber-risk-report)
Threshold signature schemes, a form of multi-party computation (MPC) that lets a set of parties sign together without any one of them holding the key, are increasingly deployed inside trusted execution environments (TEEs). The combination is intended to amplify security for sensitive computations: MPC distributes trust across multiple independent parties, while TEEs root trust in the hardware manufacturer and its attestation infrastructure. But subtle issues can arise when running an MPC protocol inside a TEE without accounting for the untrusted host: for example, a malicious host could roll back the filesystem state after a threshold signer deletes a used pre-signature, causing the signer to reuse their nonce share and disclose their private key share. So is this combination worth it? Provided you treat the TEE as a defense-in-depth layer rather than a substitute for a sound protocol, the answer is yes. This blog post discusses what TEE attestation can and can’t fix in MPC deployments, explores the pitfalls we see most often in audits, and covers best practices, such as incorporating strong attestation processes and binding them to the MPC parties’ identities. MPC: Security that depends on participant behavior Before diving into how TEEs and MPC interact, we need to understand what MPC means and what security guarantees it offers. MPC is a cryptographic technique that allows multiple parties to jointly compute a function over their private inputs without revealing those inputs to each other. The security of MPC protocols depends critically on assumptions about participant behavior. The cryptographic literature uses two primary security models: Semi-honest (honest-but-curious) security : In this model, all participants follow the protocol exactly as specified, but they m