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.

DNS Filtering

DNS filtering is a technique used to restrict access to certain websites based on domain names. It prevents users from reaching malicious or inappropriate sites by blocking DNS queries that resolve to blacklisted domains.

Example: A business implements DNS filtering to block employees from accessing known malware sites and prevent accidental downloads of ransomware.

See also: Protective DNS (PDNS)

Web filtering

Web filtering is a broader security measure that controls access to websites based on content categories, reputation, or security risks. It can use DNS filtering, URL filtering, and content analysis to block harmful or non-compliant web traffic.

Example: A school uses web filtering to prevent students from accessing adult content, social media, and gaming sites during school hours while allowing educational resources.

See also: Protective DNS (PDNS), DNS Filtering