Salesforce disabled the Klue Battlecards app integration after discovering OAuth token abuse exposed customer data during a security incident on June 11, 2026. The integration remains offline pending resolution.

The incident involved unauthorized access to OAuth tokens, which attackers leveraged to extract sensitive customer information from connected Salesforce instances. Klue, a competitive intelligence platform, experienced a compromise that cascaded into downstream risks for its Salesforce user base.

Organizations relying on Klue Battlecards for competitive analysis and sales intelligence lost access to the integration without warning. Salesforce issued guidance requiring customers to revoke existing OAuth tokens and re-authenticate once the integration returns online. The platform giant confirmed it detected the token abuse through its security monitoring systems and coordinated with Klue to remediate the vulnerability.

OAuth tokens function as temporary credentials granting third-party applications access to Salesforce data without exposing user passwords. When compromised, these tokens allow attackers to impersonate legitimate applications and exfiltrate customer records, deal information, and account details. The scope of exposed data remains undefined, though organizations using Klue should assume their competitive intelligence data and linked CRM records faced potential compromise.

This incident underscores a recurring risk in enterprise SaaS ecosystems. Third-party integrations multiply attack surface area. A single compromised partner integration can expose thousands of downstream customers. Salesforce AppExchange hosts thousands of third-party integrations, each representing a potential vector for token theft.

Organizations should audit all active OAuth integrations within Salesforce, review token permissions against business necessity, and implement token rotation policies. Enable multi-factor authentication for administrative accounts to prevent lateral movement if tokens are stolen. Klue customers should immediately invalidate existing connections and monitor Salesforce audit logs for suspicious data access patterns during the compromise window.

The incident demonstrates that cloud integration security remains a