Chinese hackers targeted global telecommunications providers for years

Security researchers have revealed that Chinese threat actors were possibly behind a large-scale cyber attack targeting global telecommunications providers in order to gain access to detailed call logs and geolocations of certain users from various countries.
In an investigation dubbed Operation Soft Cell that lasted several months, security researchers at Cybereason recently detected a massive cyber attack that targeted global telecommunication providers in order to gain access to CDRs (Call Data Records) and geolocations of certain users from various countries.
The cyber operation was possibly launched as far back as 2012 and involved hackers utilizing a number of advanced tools and techniques to gain access to networks owned by telecommunications providers, steal privileged credentials, create new credentials of their own with privileged access, and then use these credentials to obtained specific data related to consumers.