TL;DR: Six reasons UK businesses are treating Cyber Essentials as non-negotiable in 2025. Cyber Essentials is mandatory for UK government contracts involving personal data — and increasingly expected by the private sector too. Certified businesses can qualify for free £25,000 cyber liability insurance if their turnover is under £20 million. The five core controls block the vast majority of common cyber attacks — making certification one of the highest-impact things a business can do. Nearly 190,000 certificates have been issued to date — and momentum is building fast. ...