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Term: Authorisation

Authorisation

Authorization is a critical aspect of information security and access control that determines the permissions or activities that a user, system, or device is allowed to perform. It essentially answers the question, “What are you allowed to do?” Authorization comes into play after successful authentication, which confirms a user’s identity.

The process of authorization involves assigning permissions to authenticated users, systems, or devices based on predefined policies. These permissions define the actions they can perform or the resources they can access within a system. For instance, an authorized user might have permission to read certain files, modify specific data, execute certain programs, or use particular network services.

One common method of implementing authorization is through Access Control Lists (ACLs), which specify which users or system processes are granted access to objects, as well as what operations are allowed on given objects. Each entry in an ACL specifies a subject and an operation. For example, if a file object has an ACL that contains (Alice: read,write; Bob: read), this means that Alice can read and write the file and Bob can only read it.

Another common approach is Role-Based Access Control (RBAC), where access rights are based on the roles of individual users within an organization. The roles in RBAC refer to the levels of access that employees have to the network. Employees are only allowed to access the information necessary to effectively perform their job duties. High-level administrators usually have the broadest permissions and access to the most sensitive company data.

It’s worth noting that the principle of least privilege (PoLP) plays a central role in authorization. This security concept requires that a user is given the minimum levels of access necessary to complete his or her job functions. By limiting the number of privileges to what’s needed, the risk of malicious activity is reduced.

In cloud computing environments, authorization often involves managing permissions for cloud resources. This can include defining which users can create, manage, and delete virtual machines, databases, and storage buckets. Cloud providers typically offer identity and access management (IAM) services to help administrators define and enforce these authorization policies.

Authorization is crucial for maintaining the security and integrity of systems. By ensuring that users and systems can only perform actions or access resources they are permitted to, organizations can better protect sensitive data, prevent unauthorized activities, and comply with regulatory requirements.

Securinc Team

Securinc is a leading cybersecurity consulting firm dedicated to helping businesses navigate the complex world of information security. Since our inception, we have been at the forefront of the cybersecurity industry, offering tailored solutions to organizations of all sizes.

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