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security audit findings and fixes - #2
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- Added Morse code decoding in the normalization process to prevent whitespace collapse from merging words. - Implemented visible split-token de-obfuscation to reconstruct keywords split by visible characters, improving detection accuracy. - Introduced a new function to detect split base64/hex blobs across whitespace, enhancing security against encoded payloads. - Expanded exfiltration detection to include various URL-bearing channels, improving the robustness of the guard against data leaks. - Updated the confusables table to include missing Cyrillic and Greek characters, addressing critical bypass vulnerabilities. - Added tests to validate the new features and ensure existing functionality remains intact. - Created a SECURITY-AUDIT.md file documenting the security audit findings and proposed solutions for identified vulnerabilities.
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