Singapore activated its largest coordinated cyber defence operation after hackers targeted ...

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Singapore Telcos Targeted by UNC3886 Cyberattack In July 2025, an advanced persistent threat actor known as UNC3886 targeted Singapore's four telecommunications companies, compromising critical infrastructure. The attack was detected by the Infocomm Media Development Authority (IMDA) and has led to ongoing investigations into the extent of the breach. 74 sources 40