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PLA Unit 61398 is a Chinese People’s Liberation Army cyber espionage unit publicly associated with intrusions against U.S. government systems and the theft of commercial secrets from American firms for the benefit of Chinese state-owned enterprises. The group is widely linked to state-directed cyber operations originating from China and is one of the most prominent PLA-linked threat actors publicly identified by the United States. The unit has been accused of targeting U.S. government entities, including systems associated with the Office of Personnel Management and the office of the U.S. secretary of defense, as well as private-sector organizations in the United States. Reported victim sectors include government and public sector organizations and American companies holding valuable corporate intellectual property. Activity attributed to the unit has included theft of sensitive data, targeting of personnel and security-clearance-related information, and client-side attack techniques that exploit human targets as an entry vector. Operational behavior associated with PLA Unit 61398 includes initial access through client-side attacks, post-compromise data theft, and broader espionage-oriented intrusion activity. Public reporting has tied members of the unit to campaigns intended to obtain corporate secrets rather than conduct disruptive or destructive operations. The actor is best understood as a state-linked espionage group focused on strategic intelligence collection and economic cyber espionage.
Mallory correlates actor tradecraft and target patterns against your stack, your sector, and your geography. See overlap before they land.
Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.
Sectors the actor has been observed targeting.
Geographies tied to known operations.
Attributed origin per open-source reporting.
7 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
PLA-attributed cyber-espionage unit implicated in theft of trade secrets and sensitive data from US companies (including power, metals, and solar industries) and in spear-phishing activity.
Identified as a Chinese PLA hacking unit accused by the U.S. DOJ of stealing data from American firms to benefit state-owned Chinese companies (economic espionage / IP theft).
Chinese military-linked cyber espionage group accused of stealing corporate secrets and conducting intrusions into U.S. government computer systems.
Unit 61398 is known for conducting client-side attacks, particularly social engineering and spear-phishing campaigns, to compromise targets and gain initial access to networks. They are associated with advanced persistent threat (APT) operations targeting large organizations.
Match sector + geo + tech-stack targeting against your real footprint.
Every observed MITRE ATT&CK technique, grouped by tactic.
Families this actor is known to deploy, with IOCs and behavior.
CVEs this actor has used in known campaigns.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Domains, IPs, and hashes tied to this actor, refreshed continuously.