A sandbox in cybersecurity is best described as...

• A. An isolated environment used to run untrusted or potentially harmful code safely
• B. A central repository for user credentials
• C. A router feature
• D. A malware signature database

Answer: (A)

In cybersecurity, a sandbox is an isolated environment used to run untrusted or potentially harmful code safely. The key idea is containment: the code executes in a contained space where its actions can be observed without risking the rest of the system or network. This setup often includes restricted permissions, controlled network access, and thorough logging so analysts can study behavior, file changes, and network activity without letting anything escape or damage real systems. Sandboxes are especially useful for malware analysis, testing risky software, and safely deterring harmful behavior before it reaches production environments.

The other options describe different concepts: a central repository for user credentials is a credential store or password manager, not a sandbox; a router feature relates to network routing capabilities; and a malware signature database is used for detection, not execution or safe analysis in isolation.