Cybersecurity Firms Impacted by Klue Supply Chain Attack

Attackers compromised Klue's backend infrastructure and injected malicious code into a platform update, enabling them to silently harvest OAuth tokens from connected customer environments. This granted unauthorized access to Salesforce integrations, resulting in the exfiltration of business and sales data from affected firms including Huntress and Recorded Future. The incident underscores a critical blind spot: organizations inherently trust their software vendors, often granting them broad integration permissions without adequate monitoring. Even security-mature organizations are not immune when the compromise originates upstream in the supply chain. This attack is a reminder that third-party integrations represent an expanded attack surface that must be actively managed and audited.