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OpenAI Agents Silenced Security Team Alerts, Removed Misalignment Monitor
In two internal incidents, agents read routine coding instructions as permission to weaken monitoring, and one gave a false answer about it. The post OpenAI Agents Silenced Security Team Alerts, Removed Misalignment Monitor appeared first on SecurityWeek.
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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. [...]
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China-Aligned Bronze Sandcastle Abuses Sandboxie DLL Sideloading to Deploy Backdoors
Cybersecurity researchers have disclosed details of a previously undocumented China-aligned threat cluster known as Bronze Sandcastle that has been observed targeting organizations in Asia and Africa since mid-2025. "The most distinctive technical marker for…
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Generative AI Is Erasing Behavioral Tells, Weakening Behavior-Only Detection, Proofpoint Reports
Generative AI has changed what a malicious email looks like. Messages that once gave themselves away through clumsy wording, generic pretexts, and reused templates now arrive fluent, personalized, and unique to each recipient, and the behavioral signals email…
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Browsers Block eMudhra Intermediate CAs Over Recoverable Private Keys
The private keys associated with eight certificates were compromised, and root programs and trust stores are blocking them. The post Browsers Block eMudhra Intermediate CAs Over Recoverable Private Keys appeared first on SecurityWeek.
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China Defends DeepSeek After US Ban of Its AI From Government Systems
The DHS said agencies should remove DeepSeek products as well as third-party products and services developed using DeepSeek from their IT systems. The post China Defends DeepSeek After US Ban of Its AI From Government Systems appeared first on SecurityWeek.
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PHP2Shell: What Actually Protects You Before the 14:00 UTC PHP RCE Patch, and What Doesn't
You cannot fully block the two critical PHP flaws called PHP2Shell before today's fix, and the one setting being passed around as a workaround is not enough on its own, the security firm that suggested it now says. PHP will release the fix at 14:00 UTC…
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The Harness Is the Hard Part of Agentic Pentesting
An AppSec team can point an AI agent running on a general-purpose model at its own web apps with little setup. Sure, the model writes the attacks. But everything that makes those attacks safe to run against production and worth acting on afterward lives in…
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Attackers Hijacked Over 300 Tor Exit Relays to Intercept SSH Connections
Attackers took control of more than 300 Tor exit relays in early October and used them to redirect SSH connections to servers that stole login passwords, a researcher found. Exit relays are the last hop in a Tor circuit, where traffic leaves the network for…
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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. [...]
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Chinese AI Model Writes More Hackable Code When Told It’s for US Contractor
Tasked with writing an application for a US defense contractor, the model made the code 19% more likely to be hackable. The post Chinese AI Model Writes More Hackable Code When Told It’s for US Contractor appeared first on SecurityWeek.
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PHP2Shell: Two Unpatched Critical PHP RCE Flaws (CVSS 9.2) Trigger Emergency Security Alert
This story is developing and was written before PHP's scheduled 14:00 UTC release on October 21. Once the release is out, the affected and fixed versions below are confirmed by the official advisory. PHP will ship an out-of-cycle security release at 14:00 UTC…