CompTIA Security+ (SY0-601) — Question 49

An administrator is experiencing issues when trying to upload a support file to a vendor. A pop-up message reveals that a payment card number was found in the file, and the file upload was blocked. Which of the following controls is most likely causing this issue and should be checked FIRST?

Answer options

• A. DLP
• B. Firewall rule
• C. Content filter
• D. MDM
• E. Application allow list

Correct answer: A

Explanation

The Data Loss Prevention (DLP) controls are designed to prevent sensitive information, like payment card numbers, from being sent out without proper authorization. In this scenario, the DLP is likely the reason the upload was blocked. The other options, while they may also provide security, do not specifically target the detection and prevention of sensitive data transmission.