Gainsight has disclosed that the recent suspicious activity targeting its applications has affected more customers than previously thought.

The company said Salesforce initially provided a list of 3 impacted customers and that it has "expanded to a larger list" as of November 21, 2025. It did not reveal the exact number of customers who were impacted, but its CEO, Chuck Ganapathi, said "we presently know of only a handful of customers who had their data affected."

The development comes as Salesforce warned of detected "unusual activity" related to Gainsight-published applications connected to the platform, prompting the company to revoke all access and refresh tokens associated with them. The breach has been claimed by a notorious cybercrime group known as ShinyHunters (aka Bling Lib

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