Sophos Acquires Arco Cyber to Bring CISO-Level, Agentic AI-Powered Expertise to Every Organization Sophos, a global leader of innovative security solutions for defeating cyberattacks, has announced the acquisition of UK-based Arco Cyber, a cybersecurity assurance company that helps organizations strengthen their security posture while staying February 11, 2026 Cybersecurity/News/Technology News