B3 Security

What Does B3 Security Mean?

B3 security is a security rating used to evaluate the security of computer applications and products to be used within government and military organizations and institutes. It is among the classifications/ratings produced by the U.S. National Computer Security Center (NCSC) as part of the Trusted Computer System Evaluation Criteria (TESC), or the orange book.


Techopedia Explains B3 Security

B3 security primarily requires that the reference monitor condition is fulfilled, access to objects is secure and all the processes are small enough that they can be easily analyzed and tested. B3 security covers the area of security domains, where the system has high-end engineered design, strict security architecture and ongoing monitoring.

To achieve this, B3 security relies on comprehensive security design and engineering to reduce the complexity of the system and remove code that isn’t essential to security policy and its implementation. Moreover, the system must maintain security event logs, backup and recovery procedures and be highly resistant to penetration attack from intruders.


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Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical, business audience. Over the past twenty years her explanations have appeared on TechTarget websites and she's been cited as an authority in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine and Discovery Magazine.Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages. If you have a suggestion for a new definition or how to improve a technical explanation, please email Margaret or contact her…