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.

Unauthorized persons, reportedly associated with a nation-state actor, believed to be a reference to China, hacked into Ribbon's IT systems.

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

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

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

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TelecomTV TelecomTV — 2025-10-31

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