In the ever-evolving world of cyber security, understanding key terminology is essential to protect your business and personal data. This comprehensive cyber security glossary provides clear and concise definitions of the most important terms, concepts, and threats in the digital security landscape. From ransomware and phishing to zero-day exploits and encryption, this guide is designed to help you stay informed and secure. Whether you're an IT professional, a business owner, or just someone looking to enhance your cyber security knowledge, this glossary is your essential resource for comprehensive cyber security awareness.

DoS (Denial-of-Service)

An attack where a system is overwhelmed with traffic or requests, making it unavailable to legitimate users.

Example: A hacker floods a website with so many requests that it crashes and can't be accessed.

See also: DDoS (Distributed Denial-of-Service)