Researchers say hackers responsible for 2013 Microsoft, Facebook breaches have disappeared

A mercenary hacker group has been linked to a newly disclosed 2013 breach at Microsoft in which the attackers accessed a highly sensitive internal database that held information about software flaws in company products, according to Reuters and prior research conducted by a cohort of cybersecurity experts. The latest revelations about Microsoft are all the more concerning because the hacker group responsible, dubbed by security researchers as “Wild Neutron,” “ButterFly” or “Zero Wing,” have become virtually untraceable since September 2015. Although experts say that Wild Neutron likely remains active, recent evidence of their exploits is lacking. “It’s kind of scary to think we haven’t even seen them in a while,” said Brian Bartholomew, a senior security researcher with Kaspersky Lab. “They just sort of fell off the radar … that could be due to a significant change in tactics or tools or just a lull in activity … It’s anyone’s guess.” […]

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