Cyber Security Glossary / Dictionary

Cyber Security Terms and Definitions

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.

DKIM (DomainKeys Identified Mail)

An email authentication method that uses cryptographic signatures to verify that an email was sent from an authorised mail server and that its content has not been tampered with during transit.

Example: An outgoing email is digitally signed with DKIM, and the recipient's mail server verifies the signature to confirm its authenticity.