Major telecommunications provider Syniverse, which routes billions of text messages each year for providers including AT&T, Verizon, and T-Mobile, has revealed it is the victim of a five-year-long security breach that may have exposed millions of mobile phone users around the world.
This incident was revealed in a Sept. 27 filing with the US Securities and Exchange Commission (SEC), in which Syniverse revealed in May 2021, it “became aware of unauthorized access to its operational and information technology systems by an unknown individual or organization.”
The company then launched an investigation, notified law enforcement, began remediation, and hired legal counsel and other incident response professionals, the SEC filing states.
This sort of surveillance is why end to end security is now common. Signal is open source and vetted as secure.