Singapore is addressing cyberattacks on its critical information infrastructure attributed to the state-sponsored cyberespionage group UNC3886. On 18 July, Coordinating Minister for National Security K. Shanmugam identified the group as an advanced persistent threat (APT) actor capable of long-term network infiltration to gather intelligence or disrupt essential services. He noted that UNC3886 is currently targeting high-value strategic assets in Singapore but did not name any state sponsor.

Cybersecurity firm Mandiant, which first reported on UNC3886 in 2022, has characterised it as a 'China-nexus espionage group' that has previously targeted organisations in the defence, technology, and telecommunications sectors across the United States and Asia.

In response, the Chinese embassy in Singapore denied any connection to UNC3886. In a statement published over the weekend, it described the allegations as 'groundless smears and accusations' and reiterated that China opposes all forms of cyberattacks under its laws. The embassy stated that China does not encourage, support, or condone hacking activities.