Syniverse is a telecommunications company that billed itself as "the world's most connected company." It is an American company with regional headquarters in Dubai, Hong Kong, Argentina, Luxembourg, and Costa Rica.
Syniverse noted the breach as "unauthorized access." The company noticed the breach five years after it began, giving the hacker ample time to access virtually everything they wanted. The accessed data included caller and receiver numbers, locations, and the content of SMS messages, among other things.
Syniverse filed a notice with the US Securities and Exchange Commission. The telecommunications juggernaut stated that an "individual or organization gained unauthorized access to databases within its network on several occasions, and that login information allowing access to or from its Electronic Data Transfer (EDT) environment was compromised for approximately 235 of its customers."
The breach began in May 2016 and was found in May 2021.
The breach impacts certain Syniverse clients, though these aren't the only victims. Anyone affected by the breach will have received a notification letter from Syniverse, meaning they will be able to take the necessary steps to protect themselves and their loved ones.
The breach affected more than 200 files, which seems minimal considering the time frame. Unfortunately, these files contained the information of some of Syniverse's biggest customers, which means the hack can affect millions of cell phone users worldwide.