•Unauthorized access refers to gaining entry or access to a system, physical or electronic, without the permission of the owner or administrator.

•Security is the type of system requirement that involves preventing unauthorized access to data.

•Security measures include:

oAuthentication: Verifying user identity.

oEncryption: Protecting data from unauthorized viewing.

oAccess controls: Limiting who can access specific resources.

oFirewalls: Filtering network traffic.

•Ensuring security helps safeguard sensitive information and maintain data integrity.