Syniverse, a major telecommunications company that manages the text and telecommunications infrastructure for many carriers, including Verizon and AT&T has suffered from a major data breach, which leaves billions of texts from the last 5 years exposed to hackers.

The company announced on September 27th in an SEC filing that an investigation led by the company revealed that hackers had access to its inner systems from May 2016 all the way to May 2021, resulting in billions of text messages left vulnerable. Syniverse also stated that 235 of its clients had their login information breached, and they have been contacted since.

Syniverse processes over 700 billion texts daily, according to their company website.

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