Immediate Action Required
The Cybersecurity and Infrastructure Security Agency (CISA) has recently discovered that the encryption key for storage location number (SLN) 5 (CKR 5) has been compromised.
In response to this imminent threat, CISA is advising all public safety agencies cease using SLN 5 in any activity, effective immediately. Consequently, the SLN 5 encryption key will no longer be available for distribution through the National Law Enforcement Communications Center (NLECC).
“We understand the critical role SLN 5 plays in your operations, and the sudden discontinuation may pose challenges. However, our top priority is the security and integrity of the nation’s critical communications systems and data.”
If you have any follow-up questions, please reach out to the FPIC inbox: fpic@cisa.dhs.gov