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.

Replay Attack

An attack where valid data is captured and resent to trick a system into unauthorised actions.

Example: An attacker intercepts and replays a login request to gain access to a secure system.

See also: Wormhole Attack