Sigma Computing Third-Party Breach (September 2025)

📅 2025-09-01 🏢 Drift (Salesloft)

Primary Source ↗

Incident Details

In 2025, Sigma Computing experienced a data security incident via a third-party vendor relationship. The compromised third-party vendor was Drift (Salesloft). Source reporting: https://security.sigmacomputing.com/?tcuUid=b42dd9ec-dd54-4249-a823-26c23a46d0f2

Technical Details

Initial Attack Vector: Compromise of third-party service provider / vendor relationship
Vendor / Product: Drift (Salesloft)
Supply Chain Attack: ✅ Confirmed third-party / vendor compromise

Timeline

2025-09-01 Breach occurred
2025-09-01 Publicly disclosed