This Week's Top Five Stories in Cyber

This Week's Top Five Stories in Cyber How OpenAI Agents Plotted and Breached Hugging Face Weeks after OpenAI’s announcement that its agents breached Hugging Face, two researchers from the company have dissected the incident, revealing significant details of the “unprecedented” attack. Taking the stage at BlackHat USA 2026, were Members of Technical Staff focussed on infrastructure and security, Michael Dalton, and Alignment and Safety Researcher, Eric Wallace, explaining what Michael called a “watershed moment for computer security as an industry.” The duo presented details of an elaborate investigation of over seven billion logs, which took up 3 million GPU hours – which, Fortune estimates, could have cost the company anywhere between US$4m to US$15m in compute. Although the industry learned of the incident in July, the actual trigger dates back months prior. On May 7, OpenAI started a training run for an internal-only model. The models are sandboxed and run in a virtual machine without access to the internet. ServiceNow Unveils Autonomous Cyber Defence Security Vision Building off its Autonomous Security vision, ServiceNow will offer six unified solutions to deliver AI-native cyber defence, expected to be available in December 2026, with a focus on prevention over reaction. The solutions will span cyber-physical security, agentic incident response, cyber risk and compliance, unified exposure management, identity and access security and continuous vulnerability detection. Following 82.8% of organisations reporting AI projects are already underway or planned for release within the next year, governing agents multiplies exposure faster than a human team can handle. But without proper integration of AI tools, insights and automations risk fragmentation, leaving enterprises in no better position than teams without proper agentic AI tools. China-Linked Autonomous Cyberattack on Taiwan Explained In a demonstration of what could happen when autonomous AI attacks meet geopolitical volatility, many government websites in Taiwan