Healthcare workers in Newfoundland and Labrador received an email promising a "June Holiday" as a reward for overtime, only to discover it was a cybersecurity test to track clicks. The hoax sparked anger and disbelief among already overworked and underappreciated staff, with union leaders calling it "cruel" and "disrespectful."
Advanced AI models like Anthropic's Mythos and GPT-5.5 demonstrate sophisticated cyber capabilities, finding thousands of high-severity vulnerabilities and outpacing human experts. This rapid advancement raises concerns about potential misuse by adversaries, prompting calls for government access to secure critical networks.
Ruter, Oslo's public transport authority, conducted cybersecurity tests on Chinese-made Yutong electric buses inside a decommissioned mineshaft, discovering the vehicles could be remotely deactivated and that the Chinese supplier maintained remote access for software updates. This experiment catalyzed EU-China regulatory tensions, with the EU elevating what it calls 'systemic rivalry' with China amid fears that conflicting rules expose companies to impossible compliance situations.
The UK's AI Security Institute released research showing OpenAI's GPT-5.5 achieved 71.4% on Expert-level cybersecurity tasks versus Anthropic's Mythos Preview at 68.6%—within margin of error. Both models succeeded on the previously impossible "The Last Ones" test (GPT-5.5: 3/10, Mythos: 2/10), though both failed the "Cooling Tower" power plant simulation. Sam Altman criticized Anthropic's restricted release as "fear-based marketing," suggesting the capabilities reflect general AI improvements rather than a model-specific breakthrough.
OpenAI will begin rolling out its cybersecurity tool GPT-5.5 Cyber to critical cyber defenders in the coming days, CEO Sam Altman announced on X. The tool can perform penetration testing, vulnerability identification and exploitation, and malware reverse engineering. Altman had previously criticized Anthropic for restricting access to its Mythos tool, calling it fear-based marketing, but now OpenAI is implementing the same restricted-access model.
