811 is code for insider threat within the intel agencies

DEPARTMENTS AND AGENCIES
WITH MATURE, PROACTIVE
INSIDER THREAT PROGRAMS
ARE BETTER POSTURED TO
DETER, DETECT, AND MITIGATE
INSIDER THREATS BEFORE
THEY REACH A CRITICAL POINT
AND POTENTIALLY HARM
NATIONAL SECURITY.

https://www.dni.gov/files/NCSC/documents/nittf/NITTF_InsiderThreatGuide2017_022818.pdf