What is a Denial of Service attack (DoS)?
A Denial of Service attack is a form of cyber attack which overloads a network. This can disrupt services and make a website unavailable to users.
The DoS attack can be caused by a computer virus that’s used to target a particular system.
A Distributed Denial of Service attack (DDoS), on the other hand, targets a number of computer systems at once.

Mark Sharron
Mark is the Head of Search & Generative AI Strategy at ISMS.online, where he develops Generative Engine Optimised (GEO) content, engineers prompts and agentic workflows to enhance search, discovery, and structured knowledge systems. With expertise in multiple compliance frameworks, SEO, NLP, and generative AI, he designs search architectures that bridge structured data with narrative intelligence.