A powerful backdoor/rootkit has been discovered on nearly 3 million Android smartphones worldwide, allowing an attacker to take complete control over the device once the flaw is successfully utilized. Until recently, the flaw could have been exploited by anyone who took the time to obtain two Internet domains that remained unregistered despite being hardwired into the firmware that introduced the vulnerability. After discovering the vulnerability, researchers from BitSight Technologies registered the addresses and control them to this day.