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The Cyber Sentinel

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PCI DSS 3.4 and Secure Hashing

I get asked this a lot, but default MD5 and SHA-1 hashing algorithms should not be acceptable means to render cardnumbers unreadable in the eyes of a security professional, or QSA. Although the hashing algorithm itself is secure, any information that has been hashed using MD5 or SHA-1 is now easily retrievable through the use

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