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HOME/PEOPLE/EVAN REISER
// PERSON

Evan Reiser

ROLE CEOMENTIONS 2LAST SEEN JULY 21, 2026
// BIO

Evan Reiser is the co-founder and CEO of Abnormal AI, a cybersecurity company that uses specialized behavioral AI models to detect and stop enterprise email attacks. He co-founded the company in 2018 alongside Sanjay Jeyakumar, having previously led product management and machine learning teams in Twitter's advertising business and co-founded companies including Bloomspot and AdStack. He is best known for building Abnormal AI into a prominent cloud email security platform and for his work applying machine learning to behavioral profiling for cybersecurity.

Discussed in
// RECENT MENTIONS
// SIGNALS
2 SIGNALS
01
mention·Axios AI+·JULY 21, 2026

Defendant in Anthropic's trademark lawsuit following its rebrand from Abnormal Security to Abnormal AI

Source
02
mention·Axios AI+·JULY 21, 2026

Abnormal is in a different market than Anthropic... Anthropic builds general-purpose AI language models. Abnormal builds specialized behavioral AI models to understand enterprise behavior and stop cyber attacks.

Source

AI-extracted from podcast / newsletter / paper summaries. May contain errors.