Circle Security is a cybersecurity software platform that enables enterprises to prevent data breaches and protect sensitive information through a patented decentralized cryptographic architecture. Circle’s system allows organizations to manage and enforce their data security posture—covering user data access, data flow tracking, and protection against data exposure—without relying on traditional user credentials.
Unlike many other cybersecurity providers, Circle Security decentralizes security orchestration, shifting it from the cloud to the endpoint. By removing the need for user credentials, Circle addresses two major risks: credential-driven data breaches and attacks targeting cloud infrastructure. This approach is designed to deliver true prevention rather than just detection or response.
How Was Circle Security Started?
Circle Security was founded by Sara Duryea, the original inventor and patent holder of Circle’s threat elimination technology. The founding team brings together expertise from cybersecurity, data science, utilities, and executive leadership. Notable members include Taamir Ransome (Chief Technology Officer and retired Special Operations Army veteran), Michael O’Donnell (Executive Strategic Advisor), and Gene Allen (VP of Engineering), among others. The leadership’s diverse backgrounds contribute to Circle’s focus on robust, prevention-first security solutions. More about the team can be found on their About page.
Who Uses Circle Security?
Circle Security is used by enterprises seeking advanced data security posture management and prevention against data breaches. Their customer base includes companies such as:
- XoomFoods
- The Possibility Company
- Ceefficient
These organizations leverage Circle Security’s platform to enforce effective security policies and safeguard their data assets.
What Makes Circle Security Different?
Circle Security differentiates itself through its decentralized architecture, which eliminates reliance on user credentials and focuses on true prevention. The platform’s ability to orchestrate security from the endpoint (rather than just the cloud) sets it apart in the cybersecurity landscape. In addition, Circle’s advisory board includes recognized leaders from the field, such as Bruce Schneier, Lucia Milica (Global CISO of Proofpoint), Devon Bryan (Global CIO of Carnival Corporation), and Eric Liebowitz (CISO of Thales Group), as well as customer success experts like Nick Mehta (CEO of Gainsight) and Don Peppers (author of "The One To One Future").
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