Data Breach Affects Over 200 Companies via Gainsight Integration with Salesforce

Data Breach Affects Over 200 Companies via Gainsight Integration with Salesforce

First seen 2 Dec 2025, 18:33 UTC •Infosecurity-MagazineScworldBleepingcomputerTechcrunchCybersecuritydive+21 •36.2

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Hackers compromised Salesforce-stored data from more than 200 companies through a supply chain attack involving Gainsight applications. Google confirmed the breach, stating that unauthorized access to customer data was facilitated by the exploitation of OAuth tokens. Salesforce is actively investigating the incident and has revoked access to the affected applications.

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