Abnormal gets funding boost for cloud-native email security offer

Pictured: Evan Reiser, Abnormal Security CEO


Abnormal Security, developer of an AI threat detection engine for email security, has raised $50 million in Series B venture capital funding. Led by Menlo Ventures, with participation from early investor Greylock, the round brings Abnormal’s total funding to $75 million.


Abnormal has claimed that it is using AI to reinvent email security. It said that the funding comes in the wake of strong company growth during 2020, fuelled by the growing importance of email security as enterprises shift to remote work. Since the start of the year, the company said it has tripled its Fortune 500-level customer base and achieved a three times year-over-year increase in annual recurring revenue. It will be using the new funding to double the size of its machine learning and data science teams.


“There is clear evidence that conventional email solutions are insufficient,” said Evan Reiser, Abnormal Security CEO and co-founder. “The shift in attacker techniques to more personalized, socially-engineered attacks requires a different approach. No amount of threat intelligence can stop an attack that’s never been seen before. The only way to do so is through AI-based behavioural detection. This funding allows us to double down on this technology and our team and deliver immediate and lasting value to our customers.”


Security issues will be at the heart of the following panel discussion.

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