// THREAT DETECTION AND DATA PRIVACY TERM
Need to Know
A security principle restricting access to sensitive or classified information to only those individuals whose official duties require it. Simply having a security clearance is not enough; a person must also have a valid reason to access the specific information for their job.
TECHNICAL DEFINITION
The 'Need to Know' principle is a fundamental tenet of information security and access control, mandating that access to classified, sensitive, or compartmentalized information is granted only when an individual's specific duties necessitate it. This concept is a core component of operational security (OPSEC) and works in conjunction with security clearances and the principle of least privilege (PoLP) to protect intelligence assets and military operations from unauthorized disclosure.
BACKGROUND
The Cybersecurity Maturity Model Certification (CMMC) is an assessment framework and assessor certification program designed for a variety of standards published by the National Institute of Standards and Technology.
READ MORE ON WIKIPEDIASYNONYMS & ALIASES
- principle of least privilege
- compartmentalization
- access control
- information restriction
- authorized access
- job-based access
USAGE NOTE
This principle is used to explain why two people with the same Top Secret clearance may not be able to discuss their work with each other.
DEVELOPERS
Organizations developing technology related to Need to Know.
A global leader in Privileged Access Management (PAM). Their solutions are designed to secure and manage privileged accounts and credentials, enforcing the 'Need to Know' principle by ensuring that users, applications, and machines only have access to the critical systems and data they absolutely require.
A cloud security company pioneering the Zero Trust security model. Its platform provides Secure Access Service Edge (SASE) solutions that connect users directly to applications, not the network, rigorously enforcing 'Need to Know' by granting access based on identity and context for each specific request.
A data security platform that specializes in protecting data from the inside out. Varonis helps organizations map, analyze, manage, and protect their data, automating the enforcement of least privilege access models to ensure employees only have access to the information they need.
A leading provider of Identity Governance and Administration (IGA) solutions. SailPoint's platform helps organizations govern 'who has access to what' by automating access requests, certifications, and policy enforcement, thereby operationalizing the principle of least privilege, a core component of 'Need to Know'.
A multinational cybersecurity company whose portfolio includes advanced firewalls and cloud-based offerings. Their Zero Trust Network Access (ZTNA) solutions, like Prisma Access, are built to replace traditional VPNs by providing granular, application-level access control that strictly adheres to the 'Need to Know' principle.
A cybersecurity company offering solutions in Data Loss Prevention (DLP), cloud security, and network security. Their products use behavioral analytics to dynamically enforce security policies, adapting access rights in real-time to ensure the 'Need to Know' principle is upheld.
A major American aerospace and defense technology company. They design and build high-assurance systems for military and intelligence agencies where 'Need to Know' is a fundamental and mandatory security doctrine, implemented through multi-level security (MLS) architectures and cross-domain solutions.
Through its Azure Active Directory and Microsoft Purview platforms, Microsoft provides comprehensive tools for identity management and information protection. Features like Privileged Identity Management (PIM) and Conditional Access policies allow organizations to implement granular, just-in-time access controls, directly enforcing the 'Need to Know' principle.