Optical vendor Ribbon suffers ‘cybersecurity incident’

Optical Vendor Ribbon Suffers Cybersecurity Incident

Telcos worldwide are experiencing cyberbreaches, but vendors are also being targeted.

Ribbon Communications, a Plano, Texas-based optical and IP networking system developer, recently admitted to being hacked by "unauthorized persons, reportedly associated with a nation-state actor," believed to be a reference to China.

the hackers have been sitting quietly in Ribbon’s IT systems for almost a year

The incident was disclosed in the company's 10-Q filing with the Securities and Exchange Commission (SEC), under the sub-heading "Cybersecurity Incident Disclosure" on page 57.

Author's summary: Ribbon Communications suffered a cybersecurity incident.

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TelecomTV TelecomTV — 2025-10-31