What's happening in security.
The latest breaches, malware, and privacy stories from BleepingComputer, The Hacker News, Krebs on Security, and Malwarebytes Labs — short excerpts, always linking back to the original source. Last refreshed 28 Oct 2026 · 03:01.
Japan's GMO urges customers to shut down PCs amid ransomware threat
The GMO Group has urged customers to disconnect their systems from the internet and shut down computers after a threat actor who breached the company's Onamae Desktop Cloud threatened to launch a ransomware attack today. [...]
OpenAI's GPT-6.1 Terra is safer overall, but shows more destructive-action flags in tests
OpenAI confirmed GPT-6.1 Terra is safer overall than some of its older models, but its safety testing also found other problems. [...]
UNM Health ransomware attack disrupts patient care, surgeries
The University of New Mexico Health Sciences Center disclosed a cyberattack that caused system outages and disrupted patient care and academic activities. [...]
Hackers hijack Convertr analytics script to steal payment card data
A credit card skimming group reportedly compromised a shared analytics script used by e-commerce platform Convertr to steal shoppers' payment data during checkout. [...]
Microsoft releases Windows OOB updates to distrust eMudhra certificates
Microsoft has released out-of-band (OOB) Windows updates to remove trust in certificates tied to compromised eMudhra certificate authority keys, protecting systems that do not receive automatic certificate trust updates. [...]
Warp discloses breach exposing AI agent logs, user telemetry data
Agent decision logs and telemetry data belonging to Warp agentic development environment users were exposed in an attack on a third-party vendor in the project's infrastructure. [...]
Tailscale warns of SSH flaws allowing root privilege escalation
The Tailscale security team is working to patch almost a dozen security vulnerabilities that could be exploited to steal credentials, crash servers, gain root privileges, and more. [...]
The Huntress Tragic Quadrant: Ranking Threats Hitting Businesses Hardest
Attackers are increasingly abusing legitimate IT tools, Microsoft 365 sessions, and everyday workflows to compromise businesses without triggering traditional defenses. Huntress Labs ranks the threats hitting organizations hardest, highl...
Apple backports CoreGraphics zero-day patches to older iPhones
Apple has backported security patches released last month to older iPhones and iPads, addressing a zero-day bug exploited in "extremely sophisticated" targeted attacks on iOS devices. [...]
Energy giant ENGIE discloses data breach affecting customers
French energy giant ENGIE, one of the world's largest power and natural gas providers, confirmed that attackers stole customer data after breaching a marketing platform used by business partners. [...]
CISA confirms PHP2Shell vulnerabilities now exploited in attacks
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added the PHP2Shell vulnerabilities to its catalog of actively exploited security flaws and ordered federal agencies to patch their systems by Thursday. [...]
University of Copenhagen data breach exposes data of 525,000 people
The University of Copenhagen in Denmark confirmed that hackers accessed one of its test environments containing personal data belonging to 525,000 people. [...]
Former pentester used ARTEX AI to steal 8.2 million data records
South Korean police identified seven suspects linked to a cybercrime operation that breached more than 90 organizations in the country, with ARTEX AI pentesting framework used in most of the attacks. [...]
OpenAI launches GPT-6.1 Terra with 3x faster AI agents, 50% lower pricing
OpenAI has launched GPT-6.1 Terra, a new model focused on computer use, visual reasoning, coding, and everyday work, while costing significantly less than its larger models. [...]
DreamHost forces password resets in ongoing "incident"
DreamHost has forced password resets for email and FTP/SFTP users following an incident that disrupted connections to the File Manager interface. [...]
Critical 'HTTP2Shell' Brotli vulnerability triggers emergency patches
A critical flaw dubbed 'HTTP2Shell' in Brotli, the C decoder library built into Node.js, could allow attackers to corrupt memory and access sensitive data. [...]
Microsoft releases emergency .NET patches for critical Brotli flaw
Microsoft released emergency .NET security updates to patch a critical vulnerability known as Broccoli2Shell, also tracked as Node2Shell and HTTP2Shell. [...]
When an AI Agent Is the Incident, the Identity Record Is the Evidence
A new NIST, CISA, and NSA guide treats runaway agents as incidents to be rehearsed. The hard part of the response is answering whose authority the agent used, and that answer has to exist before the incident does. [...]
Chinese man extradited for role in $36 million cryptocurrency scam
A Chinese national was arraigned in California after being extradited from the Netherlands for his alleged involvement in a cryptocurrency investment scam that stole nearly $37 million from 174 victims in the United States. [...]
Kali Linux 2026.3 released with 6 new tools, desktop updates
Kali Linux has released version 2026.3, its third release this year, featuring six new hacking tools, desktop environment improvements, refreshed build scripts, and more. [...]
PHP2Shell security flaws now sucessfully exploited in the wild
Two critical RCE vulnerabilities (CVE-2026-109618 and CVE-2026-109619), collectively tracked as PHP2Shell, have been successfully exploited in the wild. [...]
AI coding agents hijacked using AGENTS.md file in Downloads folder
Researchers found a malicious AGENTS markdown instruction file in a customer's Downloads folder that tricked an AI coding agent into installing a rogue npm package. [...]
BlackX UEFI bootkit exploits Baton Drop flaw to bypass Secure Boot
A new UEFI bootkit named BlackX, deployed in an espionage campaign in early 2026, exploited the old Baton Drop vulnerability to bypass Secure Boot and load a malicious driver designed to interfere with security solutions from Kaspersky a...
Abandoned Popcorn Time app exposed millions of devices to RCE attacks
Researchers remotely disabled a vulnerable updater in the abandoned Time4Popcorn app, a fork of the Popcorn Time BitTorrent client, closing a security flaw that could have allowed attackers to execute malicious code with elevated privile...
Microsoft Teams to get AI-powered, context-aware phishing detection
Microsoft has announced plans to add AI-powered phishing detection to Teams messages starting in early November 2026. [...]
Microsoft: Windows Server 2016 reaches end of support in January
Microsoft says Windows Server 2016 will stop receiving security updates after it reaches the end of support in January 2027. [...]
Quest Diagnostics confirms data breach exposed patient records
American clinical laboratory company Quest Diagnostics disclosed that patient records have been exposed after a threat actor gained unauthorized access to its Quanum LSM system. [...]
PHP shares mitigation for new RCE vulnerability with no patch
The PHP security team has shared mitigation measures for a new remote code execution vulnerability that affects systems with non-default configurations and has no patch. [...]
You gave your AI agent access, but who is giving it orders?
AI agents can be manipulated through malicious emails, websites, and plugins into executing commands, stealing data, or deleting files using their legitimate permissions. Gen Digital explains how its Agent Trust Hub helps protect agents...
HPE patches eight max severity RCE and auth bypass AOS flaws
Hewlett Packard Enterprise (HPE) released security updates to patch 72 vulnerabilities in the Aruba Operating System (ArubaOS), including eight maximum-severity authentication bypass and code execution issues. [...]
Railway warns devs to rotate secrets after potential breach
Cloud platform Railway published an urgent warning to users after detecting suspicious activity on its systems that store customer environment variables earlier this week. [...]
Capcom confirms data breach affecting 11.7 million accounts
Japanese gaming giant Capcom has confirmed that hackers breached its membership service, CAPCOM ID, exposing more than 11.7 million customer email addresses and associated information. [...]
LiteLLM release pipeline hacked to distribute info-stealer malware
Hackers compromised the LiteLLM project's PyPI package and published malicious Docker images with a payload that steals credentials, secrets, and environment variables. [...]
Arista patches new VeloCloud Orchestrator zero-day exploited in attacks
Arista Networks released security updates to patch an actively exploited zero-day vulnerability affecting VeloCloud Orchestrator (VCO) On-Prem deployments. [...]
Microsoft shares how to fix broken Exchange Online EWS apps
Microsoft says IT admins can re-enable the retired Exchange Web Services (EWS) API in Exchange Online to fix EWS apps that have stopped working. [...]
Machine speed attacks require machine speed detection and response
Attackers can steal credentials and begin exfiltrating data within minutes, often before security teams can respond. Exaforce examines real-world attacks involving stolen GitHub tokens, malicious AI installers, and MFA phishing, explaini...
Amazon says PHP2Shell exploitation began 4 days before patches
Security researchers at Amazon Threat Intelligence say attackers began targeting the PHP2Shell flaws four days before security patches were released on Wednesday. [...]
GitLab warns of new max severity code execution vulnerability
GitLab has released security patches for a maximum-severity Regular Expression Compiler flaw that can let remote attackers run arbitrary code on vulnerable servers. [...]
Authorities disrupt nearly 11,000 cybercrime networks in Africa
Law enforcement agencies have disrupted nearly 11,000 cybercriminal networks and arrested more than 1,400 people in Operation Serengeti III, which targeted business email compromise, ransomware, and online scams. [...]
Google Chrome adds Gemini-powered scam detection, warns users of ClickFix attacks
Chrome is getting new scam protections that use Gemini to detect deceptive websites and warn users when they copy suspicious commands from ClickFix attacks. [...]
Japan's Onamae Desktop Cloud hacked, up to 27,000 servers affected
Hackers compromised the infrastructure of Onamae Desktop Cloud, a popular provider of VPS services in Japan, and installed malware on up to 26,739 customers' servers. [...]
Lazarus hackers use post-quantum cryptography for malware delivery
North Korean hackers are using a post-quantum cryptographic mechanism to secure malicious payload delivery in new operations that combine old and new malware. [...]
CISA: Hackers chain Plex flaws in Plex2Shell attacks to breach servers
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is warning that attackers are actively exploiting four vulnerabilities in Plex Media Server. [...]
OpenAI agents disabled safety monitoring, one lied about it
OpenAI agents powered by the GPT-6.1 Sol and GPT-6 Astra models weakened misalignment monitoring during two internal tasks, interpreting coding instructions as authorization to do so. [...]
PHP ships emergency patches for critical PHP2Shell flaws
The PHP security team released emergency security patches for two critical remote code execution (RCE) vulnerabilities (CVE-2026-109618 and CVE-2026-109619) tracked collectively as PHP2Shell. [...]
ClickFix has never been bigger, and AI tools are its most convincing lure yet
ClickFix attacks are surging as cybercriminals use fake AI installers, malicious search results, and trusted chatbot platforms to trick users into executing malware. Push Security examines how these attacks evade traditional defenses and...
Microsoft PowerToys adds CursorHide, Button Lock mouse tools
Microsoft has released PowerToys 0.102, with two new mouse utilities, new command-line tools, and Command Palette improvements. [...]
Microsoft says October updates didn’t actually fix VPN issues
Microsoft says it mistakenly flagged a bug causing Always On VPN connection issues as fixed in the October 2026 Windows 11 cumulative updates. [...]
CISA: SafePay ransomware hit over 600 critical infrastructure orgs
The Cybersecurity and Infrastructure Security Agency (CISA) says the SafePay ransomware gang has breached over 600 critical infrastructure organizations worldwide since 2024. [...]
Stolen UpdraftCentral keys used to backdoor WordPress sites
A threat actor breached TeamUpdraft's website, a developer of popular WordPress backup and security plugins, potentially compromising UpdraftCentral connection keys that can send commands to connected websites. [...]
Mozilla, Google, Apple block compromised eMudhra CA certificates
Certificate authority eMudhra revoked eight compromised intermediate certificates after researchers found their private keys were so weak that anyone could recover them almost instantly and use them to forge trusted certificates for legi...
PHP warns admins of two critical flaws, emergency patches coming tomorrow
The PHP security team is warning administrators to prepare for emergency security updates tomorrow to address two critical vulnerabilities, as information about the flaws has reportedly leaked ahead of their scheduled disclosure. [...]
Zeabur shutting down after second security breach in two months
Development platform Zeabur has disclosed details of a cybersecurity incident in which an attacker used leaked internal credentials stored in plaintext to compromise its infrastructure and steal over 3.2 million environment variable reco...
OpenAI says GPT-6.1 Sol is dramatically better at migrating legacy code
OpenAI confirmed that its newer models are much better at writing and migrating software in older programming languages. [...]
DHS bans DeepSeek products across US federal civilian agencies
The U.S. Department of Homeland Security (DHS) is ordering federal civilian agencies to stop using DeepSeek products and remove them from government systems. [...]
CJIS v6.1 Compliance: 5 Practical Priorities for Agencies
CJIS v6.1 requires agencies to maintain strong authentication, account security, and audit controls while demonstrating ongoing compliance. Specops outlines five practical priorities covering MFA, account management, passwords, logging,...
Hacker gets 8 years for stealing $3.3 million from taxpayers
A Nigerian national was sentenced to eight years in prison for his involvement in a series of spearphishing attacks targeting US tax preparation businesses since 2019. [...]