US Federal Agency’s Cisco Firewall Infected With ‘Firestarter’ Backdoor
At least one US federal agency was infected with a backdoor as part of a widespread China-linked espionage campaign targeting Cisco firewalls. In May 2024,…
Category: SecurityWeek
China-Linked APT GopherWhisper Abuses Legitimate Services in Government Attacks
A newly uncovered APT is relying on legitimate services for command-and-control (C&C) communication and data exfiltration, ESET warns. Tracked as GopherWhisper (PDF) and active since…
Locked Shields 2026: 41 Nations Strengthen Cyber Resilience in World’s Biggest Exercise
The world’s largest live-fire cyber defense exercise, Locked Shields 2026, concluded on Friday after bringing together more than 4,000 participants from 41 nations. Organized by…
Why Cybersecurity Must Rethink Defense in the Age of Autonomous Agents
In March 2026, San Francisco once again became the epicenter of the cybersecurity world. Thousands of practitioners, vendors, and investors gathered at Moscone Center for…
In Other News: Unauthorized Mythos Access, Plankey CISA Nomination Ends, New Display Security Device
SecurityWeek’s weekly cybersecurity news roundup offers a concise overview of important developments that may not receive full standalone coverage but remain relevant to the broader…
Pre-Stuxnet Sabotage Malware ‘Fast16’ Linked to US-Iran Cyber Tensions
SentinelOne has discovered a Lua-based sabotage malware created years before the notorious Stuxnet malware and designed to tamper with high-precision calculation software. Dubbed Fast16, the…
Trump Administration Vows Crackdown on Chinese Companies ‘Exploiting’ AI Models Made in US
The Trump administration is vowing to crack down on foreign tech companies’ exploitation of U.S. artificial intelligence models, singling out China at a time that…
Luxury Cosmetics Giant Rituals Discloses Data Breach
Luxury cosmetics giant Rituals has disclosed a data breach impacting the personal information of its My Rituals members. The incident, the company says, occurred earlier…
Rilian Raises $17.5 Million for AI-Native Security Orchestration
Cybersecurity startup Rilian today announced raising $17.5 million in combined seed and seed extension funding. The funding round was led by 8VC, First In, and…
Chinese Cybersecurity Firm’s AI Hacking Claims Draw Comparisons to Claude Mythos
A Chinese cybersecurity firm has claimed AI-driven vulnerability discovery capabilities that approach the scale of those attributed to Anthropic’s recently unveiled Claude Mythos model. The…
Cloudsmith Raises $72 Million in Series C Funding
Artifact management platform Cloudsmith today announced raising $72 million in a Series C funding round that brings the total raised by the company to $124…
The Behavioral Shift: Why Trusted Relationships Are the Newest Attack Surface
You can no longer recognize a phishing email by simply counting the typos. And you will get caught if you simply respond to a genuine-looking…