US company with access to biggest telecom firms uncovers breach by nation-state hackers

 Hackers working for an unnamed nation-state breached networks at Ribbon Communications, a key U.S. telecommunications services company, and remained within the firm’s systems for nearly a year without being detected, a company spokesperson confirmed in a statement on Wednesday.

Ribbon Communications, a Texas-based company that provides technology to facilitate voice and data communications between separate tech platforms and environments, said in its October 23 10-Q filing with the Securities and Exchange Commission that the company learned early last month that people “reportedly associated with a nation-state actor” gained access to the company’s IT network, with initial access dating to early December 2024.

The hack has not been previously reported.

https://databreaches.net/2025/10/29/us-company-with-access-to-biggest-telecom-firms-uncovers-breach-by-nation-state-hackers/