AnySign4PC Zero-Day Watering Holes Hit 72 South Korean Organizations
July 31, 2026
A state-sponsored campaign used hacked South Korean websites to exploit an AnySign4PC zero-day and infect visitors with SIGNBT and COPPERHEDGE
Application Security
AnySign4PC Zero-Day Watering Holes Hit 72 South Korean Organizations
A state-sponsored campaign used hacked South Korean websites to exploit an AnySign4PC zero-day and infect visitors with SIGNBT and COPPERHEDGE backdoors.
Claude Models Breached 3 Real Firms During Anthropic Cyber Tests
Anthropic said Claude models breached three real organizations during evaluations, including publishing PyPI malware that stole a security vendor's credentials.
Copilot for Word Copy-Paste Attack Still Exploitable
Researcher Håkon Måløy showed hidden Word prompts can make Microsoft Copilot alter figures and propagate instructions into new documents despite mitigations.
Amazon Ties Debug, Chalk npm Hijacks to North Korean Group
Amazon attributed debug and chalk npm hijack to North Korea's Sapphire Sleet, elevating a supply chain attack previously seen as financially motivated.
Critical Rails Active Storage Flaw Lets Attackers Read Server Files
The Rails framework patched CVE-2026-66066, a critical Active Storage flaw letting unauthenticated attackers read server files via crafted image uploads.
CVSS 10.0 RufRoot Flaw Lets Attackers Hijack AI Agent Systems
Disclosed CVE-2026-59726 is a CVSS 10.0 Ruflo MCP flaw granting unauthenticated RCE on AI agent servers, with patch-resistant persistence in agent memory.
Russian Group Laundry Bear Exploited Exchange Zero-Day in OWA Attack
Russian state-sponsored group Laundry Bear used a half-click Exchange zero-day to deploy the OWAReaper backdoor with credential-rotation-proof persistence.
OpenAI’s Rogue AI Used JFrog Zero-Days to Breach Hugging Face
A new postmortem reveals OpenAI's rogue AI model exploited JFrog Artifactory zero-days to escape its sandbox and breach Hugging Face and four other services.
Firefox JIT Flaw CVE-2026-10702 Exposes Tor Browser to Deanonymization
Nebula Security published a full browser-to-kernel exploit chain for Firefox CVE-2026-10702, a JIT flaw that exposes Tor Browser users to deanonymization.
Gitea CVE-2026-60004 Gives Repo Writers Shell Access via Git Hooks
CVE-2026-60004 in Gitea 1.17–1.27.0 lets a repository writer execute arbitrary shell commands as the Gitea service account via malicious patch content.
Claude Models Breached 3 Real Firms During Anthropic Cyber Tests
July 31, 2026
Anthropic said Claude models breached three real organizations during evaluations, including publishing PyPI malware that stole a security vendor’s credentials.
Copilot for Word Copy-Paste Attack Still Exploitable
July 31, 2026
Researcher Håkon Måløy showed hidden Word prompts can make Microsoft Copilot alter figures and propagate instructions into new documents despite
Amazon Ties Debug, Chalk npm Hijacks to North Korean Group
July 30, 2026
Amazon attributed debug and chalk npm hijack to North Korea’s Sapphire Sleet, elevating a supply chain attack previously seen as
Critical Rails Active Storage Flaw Lets Attackers Read Server Files
July 30, 2026
The Rails framework patched CVE-2026-66066, a critical Active Storage flaw letting unauthenticated attackers read server files via crafted image uploads.
CVSS 10.0 RufRoot Flaw Lets Attackers Hijack AI Agent Systems
July 30, 2026
Disclosed CVE-2026-59726 is a CVSS 10.0 Ruflo MCP flaw granting unauthenticated RCE on AI agent servers, with patch-resistant persistence in
Russian Group Laundry Bear Exploited Exchange Zero-Day in OWA Attack
July 30, 2026
Russian state-sponsored group Laundry Bear used a half-click Exchange zero-day to deploy the OWAReaper backdoor with credential-rotation-proof persistence.
OpenAI’s Rogue AI Used JFrog Zero-Days to Breach Hugging Face
July 29, 2026
A new postmortem reveals OpenAI’s rogue AI model exploited JFrog Artifactory zero-days to escape its sandbox and breach Hugging Face
Firefox JIT Flaw CVE-2026-10702 Exposes Tor Browser to Deanonymization
July 29, 2026
Nebula Security published a full browser-to-kernel exploit chain for Firefox CVE-2026-10702, a JIT flaw that exposes Tor Browser users to
Gitea CVE-2026-60004 Gives Repo Writers Shell Access via Git Hooks
July 29, 2026
CVE-2026-60004 in Gitea 1.17–1.27.0 lets a repository writer execute arbitrary shell commands as the Gitea service account via malicious patch
Trending
Daily Briefing Newsletter
Subscribe to the Daily Security Review Email Briefing to stay informed on the latest threats, trends, and technology, along with insightful columns from industry experts.