M1 Limited

Profile narrative

M1 Limited, also known simply as M1, is a telecommunications operator headquartered in Singapore.
The company provides telecommunications services to individual consumers and business customers within the Singapore market.
Its offerings include mobile connectivity, broadband access and related communication solutions.
M1 operates as part of the competitive landscape of Singapore’s telecom sector.

M1 is recognised as one of the four major telecommunications companies that operate in Singapore.
Together with Singtel, StarHub and Simba, it forms a core component of the nation’s critical communications infrastructure.
The company’s network infrastructure has been referenced in official disclosures concerning cyber‑espionage activity.
In 2025 and 2026, Singapore authorities reported that the China‑linked group UNC3886 compromised parts of M1’s systems as part of a broader campaign targeting the local telecom sector.

The intrusions involved the use of zero‑day exploits, rootkits and advanced persistence techniques to gain long‑term access to backbone infrastructure.
Although the attackers did not disrupt services or obtain personal customer data, they exfiltrated limited technical network information.
The incidents prompted a coordinated government response designated Operation Cyber Guardian, involving multiple agencies and the affected telcos.
No further details about M1’s ownership structure, parent‑company relationships or subsidiary arrangements are provided in the source material.

Incidents

2 incidents linked to this organisation.