GoldenEyeDog Subgroup Linked to DigiCert Breach and Code-Signing Certificate Theft

GoldenEyeDog Subgroup Linked to DigiCert Breach and Code-Signing Certificate Theft Cybersecurity researchers have attributed the April 2026 DigiCert security incident to a threat activity cluster dubbed CylindricalCanine. Expel, which shared

Show HN: HART OS – an open-source AI OS built so frontier AI needs no datacenter

Show HN: HART OS – an open-source AI OS built so frontier AI needs no datacenter Source: Hacker News

Seeing AI Agents Is Not Enough. Security Teams Must Enforce What They Can Do

Seeing AI Agents Is Not Enough. Security Teams Must Enforce What They Can Do AI agent security is moving through a familiar maturity curve: adoption, then visibility, and finally, control.