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What Is Least Privileged Access and Why Is It Critical for Cloud Security?
Discover why least privileged access is a foundational cybersecurity concept. Learn how restricting user and application permissions to the absolute minimum prevents data breaches and stops malware.
Question
Which security concept ensures that users and applications only receive the exact permissions needed to perform their tasks, and nothing more?
A. Segregation of duties
B. Multifactor authentication
C. Role-based access control (RBAC)
D. Least privileged access
Answer
D. Least privileged access
Explanation
In cybersecurity, the principle of least privilege (PoLP) operates on a strict “need-to-know” basis. It dictates that every user, application, or system process should be granted only the absolute minimum permissions required to complete their specific job, and nothing more. For example, a marketing employee doesn’t need access to the company’s financial databases, so that access is restricted. By tightly limiting what everyone and everything can touch, least privileged access significantly shrinks a network’s attack surface. If a hacker manages to compromise a low-level employee’s account, this principle acts as a containment wall, preventing the attacker from moving laterally through the network to steal sensitive data or install malware.
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