NIST 800-53 is the cornerstone of many government cybersecurity policies in the United States, including how security shapes partnerships between federal agencies and IT and cloud providers. Understandably, it has gone through several revisions since its initial publication in 2005 to meet evolving security threats.

Here, we’ll discuss the latest revision of NIST 800-53, Revision 5. This revision will go into full effect for all providers on September 23, 2021, with the withdrawal of Revision 4.