Glossary
Egress Filtering
Egress filtering controls what leaves your network - it stops stolen data and malware communications from getting out.
What is Egress Filtering?
Controlling outbound network traffic to prevent data exfiltration and command and control communications.
Why Should You Care?
Attackers must exfiltrate data to benefit from breaches. Egress controls are the last line of defense.
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Real-World Example
Egress filtering blocks an attacker attempting to upload stolen data to an external server over DNS.
How to Protect Against Egress Filtering
- 1.
Implement strict egress filtering policies
- 2.
Block unnecessary outbound protocols
Related Terms
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