Proofpoint has announced it has entered into a definitive agreement to acquire Tessian, a leader in the use of advanced AI to automatically detect and guard against both accidental data loss and evolving email threats. The acquisition is expected to close in late 2023 to early 2024. With the acquisition of Tessian, Proofpoint will enhance its threat and information protection platforms by adding powerful layers of AI-powered defense that address risky user behaviors, including misdirected email and data exfiltration. Misdirected emails (sending emails to the wrong recipient) and mis-attached files continue to be a leading cause of compliance violations and accidental data loss for organizations according to Ponemon research : in 2022 alone, 65% of all data loss incidents occurred via email, and nearly two-thirds of organizations experienced data loss or exfiltration due to an employee mistake on email.