Business risks of denial-of-service attacks explained for UK SMEs

This guidance explains denial-of-service attacks for UK SMEs, covering how DoS differs from routine outages, common business impacts (lost sales, reputational damage, extra recovery costs), warning signs, high-risk services (websites, email, remote access), and practical preparation and response measures such as capacity planning, content delivery/filtering, supplier escalation paths, and simple incident triage and communication.