What common mistake do developers make with Context, why does the mistake cause problems, and what is the safer approach?

What common mistake do developers make with Context, why does the mistake cause problems, and what is the safer approach? One recurring problem with context is applying it without understanding the boundary it protects. Logging entire request payloads in production when they may contain passwords, authentication tokens or private user information. In addition, Structured context can add identifiers or useful values to log entries without concatenating everything into one opaque string. Safer engineering approach: keep the responsibility in the correct layer, use the framework's supported API, validate and authorize inputs, avoid hidden side effects, and verify the behavior with tests.