Abnormal Security: Cloud Email Security Platform Raises $24 Million

By Annie Baker ● November 21, 2019
  • Abnormal Security, a company that protects organizations from sophisticated and targeted email attacks, announced it raised $24 million

Abnormal Security — a company that protects organizations from sophisticated and targeted email attacks, including unknown threats that existing solutions miss — announced it has raised $24 million in Series A funding led by Greylock Partners. And the company also announced the general availability of its cloud email security platform.

With unique composite analysis of identity, relationships, and email content, the Abnormal Security platform prevents attacks that lead to account takeover, financial damage, and organizational mistrust. Abnormal Security was founded by CEO Evan Reiser and CTO Sanjay Jeyakumar last year. Both of them previously built large scale machine learning platforms at TellApart, Twitter, and Google. And Abnormal Security is building a state of the art data science and behavioral analysis platform, applied to email security challenges.

Abnormal has a very strong team, including individuals from Twitter, Google, Amazon and leading security companies including Palo Alto Networks, Proofpoint, FireEye, and Duo Security.

“The Greylock team connected us with over 50 Fortune 500 CIOs and CISOs for input on how to apply our unique experience to solve their greatest security risks,” said Evan Reiser, Abnormal Security CEO and co-founder. “Every security leader had the same problem: account compromise, executive impersonation, and financial loss due to targeted email attacks that bypass conventional email security. Partnering with these top security organizations helped us design a new cloud-native architecture from the ground up that is fast to evaluate, simple to operate, and uniquely stops the most damaging attacks.”

The Abnormal Security platform provides unprecedented protection against targeted attacks by analyzing more sources of data than any other email security solution, including data beyond email. And Abnormal Behavior Technology (ABX) uses this rich set of organization-specific data to uniquely drive the Abnormal Identity Model, the Abnormal Relationship Graph, and Abnormal Content Analysis.

The Abnormal Identity Model builds profiles of employees and third-parties like vendors and customers using hundreds of attributes extracted from dozens of data sources. And the Abnormal Relationship Graph understands the strength of relationships by evaluating the cadence, topics and tone of communication in addition to the frequency. Plus Abnormal Content Analysis uses a variety of techniques such as computer vision and natural language processing to understand the context and meaning of communications.

Over 70% of business email compromise attacks identified through Abnormal Security platform customer deployments were not initially blocked by secure email gateway solutions. And unlike traditional secure email gateways that require organizations to re-configure email routing that leads to delivery interruptions and potential outages, Abnormal Security integrates through Office 365 and G Suite API’s with just one click and requires no configuration. Plus it integrates outside of the mail flow so that there are no delays in email delivery and provides critical visibility into internal email to detect compromised accounts and stop internal email attacks.

“The acceleration of mobile technologies, the cloud, social media and Internet of Things in the enterprise environment has resulted in a larger playing field for cybercriminals to take advantage of. Prior to Abnormal Security, we relied on a secure email gateway to mitigate risk from business email compromise but recognized the need for additional protection,” added Joseph Kamau, CSO at Freedom Financial Network. “Abnormal Security provided a frictionless implementation with minimal operational impact on our people, data, and business processes. By applying contextual, data science-based intelligence to a mailbox and analyzing behavior, Abnormal Security uniquely and effectively shored up our email security stack.”

Currently, the Abnormal Security platform is deployed across a range of industries, including numerous Fortune 500 enterprises, many of which helped shape the product to fit their most pressing security needs as they move to the cloud.

“Despite extensive investment into the email security stack, socially-engineered email attacks continue to cost organizations billions of dollars annually in reported losses. The most sophisticated attacks bypass existing secure email gateways, requiring a fundamentally new technical approach. Abnormal Security continues our tradition of partnering with exceptional entrepreneurs to help solve problems that represent large market opportunities,” commented Asheem Chandna and Saam Motamedi, partners at Greylock and Abnormal Security Board Directors.