I placed an order on AB and sent my PGP encrypted info. The vendor logged in the day after I ordered (and not since then) but my order remained "processing" and eventually was auto-canceled because of vendor inactivity.
This was my first DNM order and I'm concerned that my address may now be unsafe. Is there any non-nefarious reason for a vendor to behave like this?
I'm sure you're fine. If the vendor was compromised I doubt they would come after you. It's possible but unlikely. Besides, chances are the vendor just haven't been accepting new orders and didn't put vacation mode on or something.