Acting Navy Secretary Hung Cao directs Sailors, Marines, reservists, civilian employees and military families to hide Department of the Navy ties amid doxing, drone surveillance, cyber threats and suspected physical-security probes.
WASHINGTON | The Department of the Navy has issued an urgent force-protection warning directing personnel and their families to review social media accounts, restrict public access and remove information that could expose their military connections or daily routines.
The Aug. 19 message, titled “Epic Vigilance: Immediate Actions for Force Protection and Personal Security,” describes what Navy leaders characterize as a coordinated, multidomain threat campaign targeting Department of the Navy personnel, installations, warships, aircraft and families.
Released as ALNAV 050/26 by Acting Secretary of the Navy Hung Cao, the directive applies broadly to Sailors, Marines, reservists, civilian employees and family members. It warns of online harassment, doxing, uncrewed aircraft surveillance, suspicious activity near installations, attempted physical-security breaches and campaigns intended to test the endurance of security forces.
The Navy’s central message is direct: Personnel and their families should assume that adversaries are collecting publicly available information and combining seemingly harmless details to identify military affiliations, movements and vulnerabilities.
“Adversaries are actively mining this data,” the notice states.
The official ALNAV 050/26 force-protection message does not identify a single triggering incident or name the foreign governments, extremist organizations or individual actors believed to be responsible. Instead, it describes a pattern of activity that naval leaders say has intensified since the beginning of Operation Epic Fury.



