Microsoft warns of new XCSSET macOS malware variant targeting Xcode devs

Published on September 25, 2025

Microsoft Threat Intelligence reports that a new variant of the XCSSET macOS malware has been detected in limited attacks, incorporating several new features, including enhanced browser targeting, clipboard hijacking, and improved persistence mechanisms. [...]

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Unofficial Postmark MCP npm silently stole users' emails

September 25, 2025
A npm package copying the official 'postmark-mcp' project on GitHub turned bad with the latest update that added a single line of code to exfiltrate all its users' email communication. [...]

Cisco ASA Firewall Zero-Day Exploits Deploy RayInitiator and LINE VIPER Malware

September 26, 2025
The U.K. National Cyber Security Centre (NCSC) has revealed that threat actors have exploited the recently disclosed security flaws impacting Cisco firewalls as part of zero-day attacks to deliver previously undocumented malware families like RayInitiator and LINE VIPER."The RayInitiator and LINE VIPER malware represent a significant evolution on that used in the previous campaign, both in