As the federal government continues to move critical systems into the cloud, SaaS offerings inevitably move to the forefront of digital transformation. These solutions provide the scalability and flexibility these agencies need, even if they introduce unique security challenges. Namely, isolation strategies become paramount when serving multiple tenants, especially in high-security environments.

FedRAMP sets rigorous standards for securing cloud environments aligned with NIST 800-53, and multi-tenant SaaS providers must demonstrate robust separation mechanisms to achieve and maintain authorization.

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Achieving FedRAMP authorization requires a hardened approach to cryptographic validation beyond shallow ciphers. For CSPs, simply saying that you use AES-256 or support TLS without verified, validated cryptographic modules introduces fatal flaws into authorization efforts. 

To succeed, CSPs must build systems that assume validation is an operational need and not something they do after the fact. They must also recognize that misinterpretations of FIPS requirements can derail otherwise sound security architectures during 3PAO audits or agency reviews.

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A critical component of the FedRAMP framework is its adherence to cryptographic standards, specifically the Federal Information Processing Standard (FIPS) 140-3. Data privacy is essential to compliance, and the National Institute of Standards and Technology has clearly defined the requirements for just how a FedRAMP-compliance organization encrypts its data. 

This article will cover those requirements and how to approach them in your organization.

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