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What do you mean by security? Discuss in brief access control list.

Question

What do you mean by security? Discuss in brief access control list.

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Solution

Security, in the context of information technology, refers to the measures taken to protect systems, networks, and data from digital attacks. These attacks are usually aimed at accessing, changing, or destroying sensitive information, interrupting normal business processes, or installing malware into the systems.

Security involves several layers of protection spread across computers, networks, or data you intend to keep safe. In an organization, the people, processes, and technology must all complement one another to create an effective defense from cyber attacks.

An Access Control List (ACL), on the other hand, is a list of permissions attached to an object. It defines which users or system processes are granted access to objects, as well as what operations are allowed on given objects. Each entry in a typical ACL specifies a subject and an operation.

For example, if a file object has an ACL that contains (Alice: read,write; Bob: read), this would give Alice permission to read and write the file and Bob to only read it.

In the context of security, ACLs are a critical concept in providing a way to ensure a higher level of logical security, ensuring only authorized users have access to certain information or resources.

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Similar Questions

Access control is a method of limiting access to a system or to physical or virtual resources. It is a process by which users can access and are granted certain prerogative to systems, resources or information. Access control is a security technique that has control over who can view different aspects, what can be viewed and who can use resources in a computing environment. It is a fundamental concept in security that reduces risk to the business or organization. To establish a secure system, electronic access control systems are used that depend on user credentials, access card readers, auditing and reports to track employee access to restricted business locations and areas. These systems include access control panels to prohibit entry to sensitive areas like alarms and lock down areas to prevent unauthorized access or operations. Access control systems perform identification, authentication, and authorization of users and entities by evaluating required login credentials that may include passwords, pins, bio-metric scans or other authentication factors. There is multi-factor authentication which requires two or more authentication factors which is often an important part of the layered defense to protect access control systems. Authentication Factors:Password or PINBio-metric measurement (fingerprint & retina scan)Card or Key

What is Access control?

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Permits the specification and enforcement of enterprise-specific security policies in a way that maps more naturally to an organization's structure and business activities.System Access controlRole-based access controlDiscretionary access controlMandatory access control;

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