A trusted engineer once walked into the system and exfiltrated data no one thought was at risk. No brute-force login. No malware. Their access was clean, their credentials valid. The breach came from the inside.
Insider threats are harder to catch because the enemy is already authenticated. Single Sign-On (SSO) has made access simpler for users, but it has also concentrated risk. When a bad actor gains the keys to SSO, they gain the power of every connected service. Detection in this space isn’t about blocking known attacks — it’s about spotting the faint signals inside legitimate sessions.
The best insider threat detection for SSO accounts for behavior, context, and anomalies. Credentials may be valid, but locations, devices, and patterns tell a deeper story. A session that logs in from one continent and downloads terabytes of data hours later should be flagged before the last file moves. Continuous monitoring means not just guarding who enters, but watching what happens during their stay.
Integrating insider threat detection into SSO starts with data visibility. You need event streams from identity providers, application logs, and network activity in one place. You correlate logins, access requests, and API calls. You build models not of attacks, but of normal patterns, so deviations stand out like sirens.