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M1 confirms data breach; payment systems unaffected

Singapore's mobile operator M1 has disclosed a data breach affecting customer information, though the company assured users that payment card details and banking data remain secure. The telecommunications provider is investigating the incident and has notified authorities.

LSN Singapore · 6 November 2026

M1 confirms data breach; payment systems unaffected

M1 said on Monday that it had identified unauthorised access to customer data, prompting an immediate investigation into the scope and nature of the breach. The operator moved swiftly to reassure subscribers that no payment card details, financial information or banking credentials were compromised in the incident.

The telecommunications company, which serves over two million customers across Singapore, did not immediately specify which customer data was accessed or affected by the breach. M1 has engaged external cybersecurity experts to assess the full extent of the incident and strengthen its systems against further unauthorised access.

The company said it has reported the matter to relevant authorities and is working to notify impacted customers in accordance with data protection regulations. M1 urged customers to remain vigilant and report any suspicious activity on their accounts immediately.

The breach marks the latest in a series of cybersecurity incidents affecting regional technology and telecommunications companies, underscoring growing concerns over data protection in Southeast Asia.