The Gyazo image-sharing platform has confirmed it suffered a data breach after hackers exploited a server vulnerability that allowed them to steal 23.6 million user records. [...]

 An ongoing malware campaign uses SEO-optimized GitHub repositories to impersonate well-known software firms to push a previously undocumented information stealer called Rapuncel. [...]

Microsoft 365 makes sharing files easy, but access can remain long after its original purpose has ended, leaving organizations with little visibility into who can still reach sensitive data. tenfold Software explains how centralized access governance and owner-driven reviews can help identify and remove unnecessary access. [...]

Microsoft Teams will soon let administrators tweak the list of file extensions commonly associated with security threats to meet their company's security requirements. [...]

Fast-growing companies face countless recommendations for securing Google Workspace, but not every control provides the same value. This webinar examines real-world breaches to explore which security controls matter most, which may be overrated, and where lean security teams should focus their resources. [...]

Microsoft has resolved a known issue that causes incorrect alerts warning that Defender Antivirus was turned off after installing recent updates. [...]

Check Point Software has released security updates to address a critical vulnerability that can let attackers execute code with root privileges on management systems. [...]

Microsoft has fixed a known issue that causes copy-and-paste failures for some Excel users after installing the September 2026 KB5002914 security update. [...]

A new Android malware called RatHat has been discovered, targeting users with an AI-powered subsystem that helps operators remotely navigate compromised devices. [...]

OpenAI has presented new examples of what they call "AI model misalignment" from the past six months, including unauthorized file uploads, following self-generated instructions, hiding mistakes, and leveraging exposed API keys. [...]

Brevo confirmed that attackers stole a Cloudflare API key and used it to inject malicious ClickFix scripts into its websites and JavaScript files embedded on customer sites to distribute malware. [...]

AI is making credential theft faster and easier to scale, giving attackers more opportunities to abuse valid identities. Specops explains why identity security must go beyond successful authentication by verifying that both the user and the device requesting access can be trusted. [...]

Microsoft reminded customers this week that devices running Windows 11 24H2 Home and Pro editions will stop receiving updates next month. [...]

The U.S. Federal Bureau of Investigation (FBI) seized the domains used by NightmareStresser, one of the world's longest-running distributed denial-of-service (DDoS) platforms. [...]

The China-linked espionage group FamousSparrow has been using a new backdoor named SparroWocky in attacks on government organizations in Latin America. [...]

Threat actors linked to a China-aligned espionage group are exploiting a critical vulnerability (CVE-2026-51990) in Tencent's Sogou Input Method for Windows to deploy the GrayRabbit backdoor. [...]

The Dutch Nationaal Cyber Security Centrum (NCSC) is warning of imminent exploitation of two critical flaws in Check Point VPN tracked as CVE-2026-85102 and CVE-2026-85103. [...]

Anthropic says multiple threat groups, including the financially motivated and state-sponsored espionage groups linked to Russia and China, tried to abuse its Claude AI model for malicious purposes. [...]

The Florida Department of Highway Safety and Motor Vehicles (FLHSMV) has confirmed that its DAVID driver database suffered a data breach, saying the attackers gained access using credentials belonging to a police department employee. [...]

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. [...]