Update: In a statement on its website, TM said Unifi customers' personal information, including names, MyKad/passport numbers, and contact details, was leaked in the data breach, but no financial information was impacted.
The company claimed it has reported the matter to the National Cyber Coordination and Command Centre (NC4), the Department of Privacy and Data Protection (JPDP), and the Malaysian Communications and Multimedia Commission (MCMC).
It added that its Unifi service remains fully operational with no impact on its users.
PETALING JAYA: Telekom Malaysia (TM) sent out an SMS today (July 12), alerting Unifi users that it has suffered a data breach that affects select customers.
"A data breach involving certain information of select Unifi customers has occurred.
"We have isolated the risk and additional security measures have been put in place to protect our customers and notified relevant authorities for further actions," the company said in the message, apologising for the inconvenience.
When contacted, a TM representative said the message was a proactive notification from the company due to a new incident.
The person also said a full statement would be issued later.
In an email to customers, TM said that some personal information, such as name, MyKad/passport number, and contact details, may have been compromised. It claimed that no other information was breached.
The company recommended that affected customers take measures to protect themselves, including being cautious about any unsolicited communications via email, phone calls, or WhatsApp.
It also advised customers to avoid clicking on links or downloading attachments from suspicious emails and sharing personal information with unauthorised parties.
And in a reply to a user who tweeted about receiving the SMS, the company said it has been "made aware of a data breach involving certain information of select Unifi customers".
It also confirmed that the breach has been contained and that steps have been taken to minimise the potential impact on affected customers.
This is the second breach that TM has suffered recently – in December 2022, the company confirmed that a data breach affected 250,248 Unifi Mobile customers.
This incident came to light when an intrusion expert tweeted that a post on a popular data breach forum claimed to sell customer information.