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On July 24, 2025, Cisco learned of a vishing attack aimed at one of its representatives, allowing a bad actor to access basic profile information from a third-party CRM system.
Upon learning of the incident, the actor’s access to that CRM system instance was immediately terminated and Cisco commenced an investigation.
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The investigation found that the exported data mainly included basic profile information of users who registered on Cisco.com, such as name, organization, address, user ID, email, phone number, and account creation date.
The actor did not obtain any of our organizational customers’ confidential or proprietary information, or any passwords or other types of sensitive information. Cisco did not identify any impact to our products or services, and no other Cisco CRM instances were affected.
“We are implementing further security measures to mitigate the risk of similar incidents occurring in the future, including re-educating personnel on how to identify and protect against potential vishing attacks.”
Cisco has not shared how many people’s information was stolen or if the attackers asked for a ransom. Cisco has engaged with data protection authorities and notified affected users where required by law.
In October, Cisco also had to take its public DevHub portal offline after a threat actor known as IntelBroker leaked “non-public” data on the BreachForums hacking forum.
