KUALA LUMPUR, Dec 3 — Investigators are focusing on emails sent from the Internet Protocol (IP) addresses of three different countries in their bid to uncover those responsible for leaking 46.2 million cellular subscription accounts, said the Inspector-General of Police.

Tan Sri Mohd Fuzi Harun said his force and the Malaysian Communications and Multimedia Commission (MCMC) were at this point of their joint investigation, but added that it was not yet necessary to seek the assistance of other countries.

“There were supposedly three emails used to spread the information, each using an IP address from Oman, Netherlands, and Hong Kong.

“We are trying to identify the owner of these accounts and this represents our current challenge in conducting investigations,”he said at the closing ceremony of the Inspector-General of Police Cup for silat and tennis.

He also said it was still unknown if the incident was the result of an individual’s actions or a syndicate.

Lowyat.net reported in October that approximately 46.2 million cellular service accounts of Malaysian telcos and mobile virtual network operators (MVNO) had been compromised and leaked online.

The technology news site said the leak included postpaid and prepaid numbers, customer addresses as well as sim card details from all major operators including DiGi, Celcom, Maxis, Tunetalk, Redtone and Altel.

Earlier this week, news portal Malaysiakini linked the breach to the MCMC’s public cellular blocking service (PCBS) that allowed the remote deactivation of stolen devices.

On a separate matter, Mohd Fuzi said the investigation into Malaysian Anti-Corruption Commission (MACC) chief commissioner Tan Sri Dzulkifli Ahmad’s alleged extramarital affair was nearly complete.