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, an optical system vendor, recently fell victim to a cybersecurity incident. In its 10-Q filing with the Securities and Exchange Commission (SEC), the vendor 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 reported on page 57 of the 10-Q filing under the sub-heading "Cybersecurity Incident Disclosure".

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

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TelecomTV TelecomTV — 2025-10-31