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Passkey-themed phishing attacks lead to Microsoft 365 data theft

Microsoft says threat actors linked to ShinyHunters, Helix, and other extortion gangs are using passkey and single sign-on-themed social engineering attacks to compromise corporate Microsoft accounts and steal data from Microsoft 365 services. [...]

GitLab CVSS 10 File-Read Flaw Draws In-the-Wild Probes After Disclosure

GitLab has released patches to address multiple flaws, including a maximum-severity security vulnerability that has witnessed in-the-wild probes within hours of public disclosure. The vulnerability in question is CVE-2026-85706 (CVSS score: 10.0), a path traversal issue in the repository commits API that could allow an unauthenticated user to read arbitrary…

Artifactory flaws chained in attacks deploying backdoor malware

Threat actors are exploiting critical and high-severity vulnerabilities in JFrog Artifactory to bypass authentication, gain administrative privileges, and deploy a Rust backdoor on vulnerable self-hosted servers. [...]

Anthropic Says Seven China-Based AI Labs Ran Industrial-Scale Claude Distillation Attacks

Anthropic on Thursday said it identified and disrupted industrial-scale illicit distillation attacks against Claude from seven labs based in China, including Alibaba, Moonshot, DeepSeek, Z.ai (aka Zhipu), and MiniMax. Knowledge distillation by itself is a legitimate training method. It refers to a machine learning technique where a large, powerful AI model …

Show HN: Hacker News, Without AI

Show HN: Godot and Rust based multiplexer (terminal panes and more)

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118M Queries per Second on Neki

Claude Used to Automate Exploitation and Data Theft Across Multiple Victims

Anthropic has warned that cybercriminals and state-sponsored hackers alike are using its Claude models for cyber attacks, weapons design, propaganda, and mass surveillance between December 2025 and August 2026. The threat actors, which the artificial intelligence (AI) company has branded Generative Threat Groups (GTGs), span state-sponsored groups, financia…

Russian State-Sponsored Hackers Use Claude to Rebuild Malware After Detection

Anthropic on Thursday revealed it disrupted a campaign mounted by a Russian state-sponsored threat actor that abused Claude for developing an AI-assisted workflow to get ahead of the detection curve. The operation has been attributed to a cyber espionage group it calls GTG-20006 (where "GTG" stands for Generative Threat Group), which aligns with broader rep…

How Threat Actors Are Turning Trusted AI Platforms Into an Attack Surface

Threat actors are abusing trusted AI platforms to host malicious content, poison search results, and trick users into installing malware. Huntress examines campaigns targeting AI users through weaponized Claude Artifacts, shared AI conversations, sponsored search results, and ClickFix-style lures. [...]

Measuring the sloppiness of code

Your Critical Vulnerabilities Might Not Be Your Biggest Risk

Security teams have become exceptionally talented at finding vulnerabilities. Now, it’s time to turn our attention to optimizing the process for determining which of those vulnerabilities actually create a path to compromise. A critical vulnerability may look alarming on a scanner report, but if it sits behind strong segmentation, identity controls, and oth…

GitLab urges users to patch max severity path traversal flaw

GitLab urged users on Thursday to patch their servers immediately against a maximum-severity path traversal vulnerability tracked as CVE-2026-85706. [...]

RTK reports token savings, but our cost benchmarks disagree

Microsoft fixes Teams, Outlook launch failures on ARM Windows PCs

Microsoft has fixed a bug that prevented Teams and Outlook from launching on ARM-based Windows devices after installing updates released since the August 2026 Patch Tuesday. [...]

Trezor: 347,000 users targeted in phishing attacks after Brevo breach

Trezor has revealed that phishing attacks against its customers earlier this week targeted 347,000 email addresses and affected 2,500 users who clicked an embedded malicious link. [...]

Attackers Chain JFrog Artifactory Flaws to Gain Admin Control and Plant Backdoors

Attackers have chained two flaws in JFrog Artifactory, the repository that software build pipelines pull from, to take administrator control of self-hosted servers and plant backdoors, cloud security company Wiz said in a report. Wiz saw the attacks between August 15 and September 8. JFrog had fixed both flaws before then, so only servers that had not been …

China-Linked UNC3569 Exploited Sogou Input Method Flaw to Deploy GRAYRABBIT Backdoor

A China-linked hacking group exploited a flaw in Sogou Input Method, one of the most widely used tools for typing Chinese characters on Windows, to install a backdoor on victims' computers, security company Gen Digital said in research published Thursday. The attack started with a crafted link and ended with the attacker able to do anything the logged-in us…

Conti ransomware gang member sentenced to 4 years in prison

A Ukrainian national has been sentenced to four years in prison for his role in Conti ransomware attacks between 2021 and 2022. [...]

PaperCut Replaces Emergency Patches With Fixes for Two Actively Exploited Flaws

PaperCut on Thursday released a new security maintenance release that replaces all previously published emergency patches that were pushed to address two security flaws that have come under active exploitation. The software development company said PaperCut NG/MF versions 26.0.5, 25.0.13 and 24.1.10 are now available for customers to download. "These are Re…

Cisco FMC Flaws Exploited to Steal Credentials and Deploy Qilin Ransomware

Cisco has revealed that three distinct threat clusters linked to ransomware and state-sponsored attacks have been exploiting two recently patched Secure Firewall Management Center (FMC) vulnerabilities. The attacks leverage CVE-2026-20079 (CVSS score: 10.0), an authentication bypass vulnerability in the web interface of FMC software that could allow an unau…

Copying login keychains between Macs fails on Secure Enclave Macs with Tahoe

New Android malware encrypts files, steals data, and harasses victims

A new Android malware strain called Mantax Otax combines ransomware and spyware capabilities to encrypt files, steal sensitive data, and spam and harass victims. [...]

September Windows Server updates break Remote Desktop Services

Windows admins report that the September 2026 security updates are causing Remote Desktop Services (RDS) failures on Windows Server 2019, 2022, and 2025 servers, preventing users from connecting and, in some cases, requiring a hard reset to restore functionality. [...]

Surfshark VPN says hackers breached internal testing, proxy servers

Surfshark disclosed that hackers accessed one of its internal test servers after a configuration error exposed it to the internet. [...]

Microsoft Excel KB5002914 update breaks copy and paste for some users

Microsoft Excel users report that this week's KB5002914 Office security update is breaking copy-and-paste operations and formula dragging, with affected users saying that removing or rolling back the update restores normal functionality. [...]

ThreatsDay: 200 Android Flaws, Browser-Built Phishing, 119K Scam Shops + 23 More Stories

A lot of this week’s security news has the same awkward answer to one question: “Why was that allowed to work?” An extension asks for access and takes too much. A trusted service becomes part of a phishing chain. An old bug still gets results. An exposed system stays exposed. A package looks useful right up until it isn’t. Different stories, same basic prob…

AI-powered attack exploited PaperCut flaws to hack 395 organizations

A threat actor, likely Russian-speaking, used hundreds of AI agents to develop and launch a global exploitation campaign targeting vulnerable PaperCut NG/MF servers. [...]

Google Play Early Access Abused to Push Thousands of Deceptive Android Apps

Bad actors are misusing Google Play's Early Access program to push deceptive apps that claim to offer money, rewards, casino winnings, and premium content. Early Access apps are apps that haven't been released on the official Android app marketplace. The main idea behind the program is for developers to solicit user feedback for new applications or features…

Check Point Discloses Two 9.8-Rated VPN Certificate Flaws Enabling Unauthenticated RCE

Check Point has patched two critical vulnerabilities in the way its firewall and management products handle VPN certificates. The company says both could allow an unauthenticated remote attacker to run code, but only "under specific conditions" that it has not described. One flaw affects Check Point's Security Gateways, its firewall appliances. The other af…