Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

Something big just happened in the cybersecurity world. And if you’re using OpenAI’s macOS apps… this affects you directly. OpenAI has rotated its macOS code-signing certificates after a supply chain attack quietly slipped into its workflow. No, your data wasn’t stolen. But yes, this is serious enough that every macOS user must update before May 8, 2026.

When Anthropic revealed the existence of Mythos, the frontier AI model they deemed too dangerous for public release, the security community was alarmed. And it’s not hard to see why: Mythos is capable of detecting software vulnerabilities at a previously unimaginable scale, and autonomously crafting exploits to weaponize these flaws. According to Anthropic, Mythos created 181 exploits of Firefox in testing, ninety times more than the company’s previous model (Claude Opus 4.6).

You often hear companies touting that they are AI enabled. But most do not give you the results of how that new AI stacks up with their previous non-AI offerings. We have some early data and want to share it. KnowBe4 was the first Human Risk Management (HRM) vendor to use AI. While our competitors have been touting the use of AI only since 2023 at the earliest, we have been using machine learning (ML), the backbone workhorse of AI, since early 2016 – for a decade!

Anthropic’s latest Claude news shows how AI is compressing the time from vulnerability discovery to credentialed lateral movement, and why security teams need behavior-based detection across humans and AI agents. Anthropic’s Project Glasswing, announced on April 7, 2026, gives selected partners early access to Claude Mythos Preview for defensive cybersecurity work. Anthropic says the model has already identified thousands of zero-day vulnerabilities across critical infrastructure.

Anthropic’s Project Glasswing and the Claude Mythos model represents a fundamental change in the physics of cyber defense. With the gap between patch releases and weaponized exploits shrinking to hours, traditional manual security triage is now obsolete. Organizations must adopt AI-driven automated remediation.

→ Audit your AI systems against EU AI Act requirements now — validate Annex IV technical documentation, logging, and data governance. The initial August 2025 compliance date has passed, and full penalties begin in August 2026. → Build a continuous compliance evidence chain — document risk management across the full lifecycle (design, development, deployment, and post-market monitoring).