CSIDB logo
Threat actor

UNC3886

Attribution profile

Type
Spy
Location
China
Known incidents
8 incidents
Sources
115 sources
First seen
2025-07-01
Last seen
2026-02-01
Updated
2026-10-13 05:50
Aliases
2 aliases

STIX characteristics

Threat actor characteristics are available to members.

Profile narrative

UNC3886, also known as Daggerfly, is a China-linked cyber‑espionage group that has targeted telecommunications providers in Singapore as well as defense, technology and telecommunications entities in the United States and Asia. The group employs zero‑day exploits, rootkits and advanced persistence mechanisms to gain long‑term access to backbone infrastructure, enabling it to monitor authentication, siphon technical/network data and maintain upstream surveillance without disrupting services. Notable operations include the 2025‑07‑01 intrusion into Singapore’s four major telcos (Singtel, StarHub, M1 and Simba Telecom) and earlier reported compromises of defense and technology sectors in the US and Asia.

Incidents

Attributed incidents are available to members.

8 incidents

Sources

Sources available to members: 115 sources.

CSIDB