Edit: I haven't been able to verify that this true for any other markets. It is still safe to assume everything compromised until further notice though. Unless your life depends on it, don't order for a while and lay low. There hasn't been one market that hasn't had some strange big bug in the last month. Most of them revolve around PGP keys and passwords/logins.
If you used a new vendor in the last month or two and you got their PGP key from a market, even if it shows on Grams, clean house. Encrypt computer. Don't panic as it only makes things worse. Take deep breaths. I believe LE compromised at least the major markets and changed the PGP keys to keys that show the same name and were created in the past (as can be done by changing the clock back on the computer creating the keys). I know this is true for at least two.
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Does that mean LE sent drugs to buyers?