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What is Blacklisting?

Blacklisting is a security mechanism where specific items are denied while everything else is allowed. While sometimes used to mitigate SSRF, it is less effective than whitelisting because it's difficult to anticipate all possible malicious inputs.

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Related terms

Cloud Instance CredentialsServer-Side Request Forgery (SSRF)WhitelistingFirewall EvasionURL Filtering Bypass
Blackholing Blind SSRF

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