CISA: Windows BlueHammer flaw now exploited by ransomware gangs

Published on June 30, 2026

CISA confirmed on Monday that ransomware gangs are now exploiting a Microsoft Defender privilege escalation vulnerability, dubbed BlueHammer, that has previously been abused in zero-day attacks. [...]

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New BioShocking Attack Tricks AI Browsers Into Leaking User Credentials

June 30, 2026
Convince an AI browser that it is playing a game, and it can hand over your login details. That is the finding behind BioShocking, a technique from security firm LayerX that tricked six AI browsers and assistants into copying a user's credentials and sending them to an attacker.The targets included OpenAI's ChatGPT Atlas, Perplexity's Comet, and Anthropic's Claude browser extension.An

AirDrop and Quick Share Flaws Let Nearby Attackers Trigger Crashes and Bypass Checks

June 30, 2026
Two researchers have found six security flaws in AirDrop and Quick Share, the wireless features that beam files between nearby devices with no cables or shared network.An attacker within wireless range, with just a laptop and no prior connection, can crash the sharing service on a Mac or iPhone set to receive from anyone, with no tap or prompt.The same research found Quick Share flaws that