A developer’s project mismanages user input, allowing an intruder to read confidential information. Which approach best addresses these flaws?
Install a server-based auditing library
Enable debug logs for the application
Conceal system messages from the interface
Use placeholders in database queries
Using placeholders (parameterized queries) ensures user input is treated strictly as data, not as executable code, thereby preventing SQL injection. While debug logs and auditing tools assist in monitoring, and hiding system messages reduces exposure, only input sanitization methods like placeholders actively mitigate the root cause of this vulnerability.
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