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What is Discretionary Access Control?
With DAC models, the data owner decides on access. DAC is a means of assigning access rights based on rules that users specify.
What is Mandatory Access Control?
MAC was developed using a nondiscretionary model, in which people are granted access based on an information clearance. MAC is a policy in which access rights are assigned based on regulations from a central authority.
What is Role Based Access Control?
RBAC grants access based on a user’s role and implements key security principles, such as “least privilege” and “separation of privilege.” Thus, someone attempting to access information can only access data that’s deemed necessary for their role.
What is Attribute Based Access Control?
In ABAC, each resource and user are assigned a series of attributes, Wagner explains. “In this dynamic method, a comparative assessment of the user’s attributes, including time of day, position and location, are used to make a decision on access to a resource.”
It’s imperative for organizations to decide which model is most appropriate for them based on data sensitivity and operational requirements for data access. In particular, organizations that process personally identifiable information (PII) or other sensitive information types, including Health Insurance Portability and Accountability Act (HIPAA) or Controlled Unclassified Information (CUI) data, must make access control a core capability in their security architecture, Wagner advises.