Optical vendor Ribbon suffers ‘cybersecurity incident’

Optical Vendor Ribbon Suffers Cybersecurity Incident

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

Optical system vendor Ribbon Communications, based in Plano, Texas, recently fell victim to a cybersecurity incident.

Unauthorized persons, reportedly associated with a nation-state actor, believed to be a reference to China, hacked the vendor.

The hackers remained in Ribbon's IT systems for almost a year, according to the company's 10-Q filing with the Securities and Exchange Commission (SEC).

The incident is disclosed on page 57 of the 10-Q filing under "Cybersecurity Incident Disclosure".

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

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TelecomTV TelecomTV — 2025-10-31

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