46.2 million Malaysian Mobile phone numbers leaked online, authorities confirmed data were stolen from government servers and databases at a dozen telcos. The stolen records include users mobile phone numbers, SIM card details, device serial numbers, and home addresses. The hackers also accessed some 80,000 medical records and compromised government websites such as Jobstreet.com. The Malaysian Communications and Multimedia Commission, along with the police, are investigating the incident. While the leaked data alone isnt sufficient to clone the SIM cards, the information can be exploited to initiate multiple social engineering attacks.”]
Source: http://securityaffairs.co/wordpress/65073/data-breach/malaysian-mobile-phone-data-leak.html