M1 Discloses Data Breach

Singapore, 6 November 2026 – M1 today disclosed that it identified a data breach on 30 October 2026 involving certain customer information. The breach has since been contained.

M1 takes the security and confidentiality of information entrusted to it very seriously, and has been working closely on the ongoing investigations with the relevant authorities and third-party specialists.

All M1 services and business operations remained fully operational throughout the incident.

No payment card details, financial or banking information, or customer account access have been compromised. However, the impacted data includes customer names, NRIC/FIN numbers, dates of birth, mobile numbers, email addresses and addresses.

M1 will start communicating with affected customers, who will be notified via email or letter.  

Customers are encouraged to remain vigilant and exercise caution when responding to unsolicited calls, messages or emails. If in doubt, customers should independently verify the identity of the caller or sender by contacting the organisation through its official channels.