Bleeping Computer

Keio Corporation (Keio), a major private railway operator in Japan, said its network was hit by a ransomware attack over the weekend, disrupting  some of its business systems. [...]

Japanese car-sharing service Times Car has confirmed that approximately 6.6 million user accounts were compromised in a cyberattack disclosed late last week. [...]

Dutch police have confirmed that a 24-year-old Amsterdam man arrested earlier this month was detained as part of an investigation into the ShinyHunters hacking group. [...]

Researchers found more than 16,000 misconfigured Supabase databases exposing readable tables with personally identifiable information, passwords, or authentication tokens. [...]

The JadePuffer ransomware operator is targeting Azure tenants with agent-driven attacks that conduct reconnaissance, steal credentials, and destroy core components. [...]

Infostealer logs exposed AI account credentials and sessions tied to more than 80,000 corporate domains, creating risks ranging from stolen conversations to LLMjacking. SOCRadar examines the growing m...

Cryptocurrency exchange Bitget has resumed Bitcoin withdrawals suspended after suspected North Korean hackers breached its systems last week and stole over $350 million. [...]

A former U.S. Army soldier has been sentenced to 70 months in prison for hacking and extorting at least 10 U.S. technology and telecommunications companies between April 2023 and December 2024. [...]

The Cybersecurity and Infrastructure Security Agency (CISA) has ordered U.S. government agencies over the weekend to secure their systems against attacks exploiting two critical Citrix NetScaler vulne...

OpenAI is testing a new always-on assistant called "o", and references to the unannounced feature briefly showed up on the company's website. [...]

Citrix has confirmed that two critical NetScaler remote code execution vulnerabilities, tracked as CVE-2026-88771 and CVE-2026-88772, are being exploited in attacks and that it has released security u...

Cloudflare has fixed a vulnerability in Containers and Sandboxes that allowed customers with a Workers Paid account to recover residual data from other customers' containers on the same physical host....

Anthropic has just announced a new Claude Marketplace, and it brings all AI-related tools into one place, including plugins, connectors, agents, and more. [...]

The ShinyHunters extortion gang is using a URL-encoding trick to bypass web application firewall rules that mitigate the Oracle PeopleSoft CVE-2026-35273 flaw, allowing the threat actors to resume wid...

Anthropic's Claude Opus 5.5 appears to be changing how it writes, with new analysis showing fewer obvious AI writing patterns, shorter sentences, and simpler wording compared with Opus 5. [...]