OpenAI Pauses Frontier RL Training as It Tightens Defenses Against Unsafe AI Behavior

OpenAI on Tuesday revealed that it paused reinforcement learning (RL) training for its latest artificial intelligence (AI) models for two weeks while it shored up additional defenses and increased the scope of its monitoring to avert another Hugging Face-like incident. „As models become more capable, the risks associated with developing and testing them internally also … Weiterlesen

Cloudflare Workers Spectre Attack Leaks JWT From Co-Located Worker at 12 Bits/Second

Cybersecurity researchers have disclosed details of a remote Spectre attack against Cloudflare Workers that leaked a JSON Web Token (JWT) from a co-located Worker in the production environment at up to 12 bits per second, 360 times the rate of an earlier attack demonstrated in 2021. The end-to-end experiment used an attacker Worker and a victim Worker … Weiterlesen

Hackers Compromised 14,500+ Dahua Devices Using Credential Attacks, Auth Bypasses, and P2P

Cybersecurity researchers at Hunt.io have disclosed details of a campaign that they say compromised more than 14,530 Dahua devices between June 17 and July 22, 2026, using credential attacks, two authentication-bypass flaws, and a peer-to-peer (P2P) relay technique. The activity, codenamed Operation CameraSwarm, was reconstructed from a 407 MB exposed working directory containing 2,616 files … Weiterlesen

SilkParasite Espionage Campaign Targets Central Asian Governments with Five New RATs

A previously unreported cyber espionage operation dubbed SilkParasite has been observed targeting government bodies in Central Asia. The intrusion set makes use of seven remote access tool (RAT) families, five of which have never been previously documented: DriveSilkRAT, CookiETagRAT, NomadRAT, GoginRAT, and NodeEdgeRAT. SilkParasite, first discovered in late 2025, is assessed to be a Quelle: … Weiterlesen

Clop-Linked Windchill Web Shell Decrypts Credentials and Maps Engineering Data

A JavaServer Pages (JSP) web shell deployed following the exploitation of a critical security flaw in PTC Windchill and FlexPLM servers is specifically designed for the enterprise Product Lifecycle Management (PLM) software, according to new findings from ReliaQuest. The cybersecurity company characterized the web shell as a fully equipped extortion platform capable of mapping sensitive … Weiterlesen

Microsoft Links 30+ Rotating Domains to MacSync Stealer Infrastructure

Microsoft Defender Experts have linked more than 30 web domains to MacSync Stealer, a macOS-focused information stealer, after correlating recurring endpoint and network behaviors across changing infrastructure, tracing the malware from payload retrieval through data collection, staging, and exfiltration. The tech giant said it required multiple endpoint and network behaviors to align before Quelle: Zum … Weiterlesen

Critical macOS, SharePoint, vCenter, and Microsoft IKE Flaws Under Active Exploitation

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added four critical vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, stating they are being exploited in the wild. The shortcomings added to the KEV catalog are listed below – CVE-2026-65400 (CVSS score: 9.8) – An improper authentication vulnerability impacting Apple macOS that could allow … Weiterlesen

StopAndProtect Uses Nearly 2,000 Hacked WordPress Sites to Spread Malware and Steal Data

Cybersecurity researchers have flagged a global cybercrime operation that abuses thousands of hacked WordPress websites as infrastructure to disseminate malware, commandeer infected hosts, store stolen documents, screenshots, and activity logs created to track the status of the activity. „The operation doesn’t rely on a single piece of malware, but on a whole toolkit of criminal … Weiterlesen

Ransom Busters Claims It Hacked Ransomware Servers, Asks Victims for Up to $60,000

A ransomware affiliate calling itself Ransom Busters has been spotted proactively sending emails to victim organizations and claims to delete stolen data from ransomware groups‘ servers in exchange for a fee ranging from $20,000 to $60,000. „In these messages, the third-party offers to help the victim recover from ransomware attack. This immediately stands out as … Weiterlesen