Daily Hack
A fresh 60-second challenge every day. Solve it, earn XP, and keep your streak alive.
The click you never made
Finance forwarded a supplier invoice and the mail gateway quarantined it. The usual first move is to check whether the extension is lying about the file, and this time it is not: the signature is honest, this really is a PDF. The problem sits further in. The catalog dictionary at the top of the file names two things that no plain invoice has any business carrying. One of them merely declares that a script is attached, and a careful reader would still prompt you before running it. The other is the key that hands control to that script the instant the document is opened, with nobody clicking anything. Read the ASCII column and name that second key.
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