In computer security what do the rows and columns correspond to in an 'access control matrix'. what does each cell in the matrix contain

Explanation:

An Access Control Matrix ACM can be defined as a table that maps the permissions of a set of subjects to act upon a set of objects within a system. The matrix is a two-dimensional table with subjects down the columns and objects across the rows. The permissions of the subject to act upon a particular object are found in the cell that maps the subject to that object.

Summary

The rows correspond to the subject

The columns correspond to the object

What does each cell in the matrix contain? Each cell is the set of access rights for that subject to that object.

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