So this thread is what DNM users should do now and how they can protect themselves better in the future.
Comment below with tips and I will edit them in.
What to do now?
Did you order on Hansa on June 20th or later and:
did not encrypt your address, or
used the PGP auto-encryption, or
used the PGP keys from the vendor profiles in the last days when it came out they were swapped to keys that hansa apparently controlled. If you used the PGP key that you stored on your computer, you may be fine as long as law enforcement did not bust the vendor and he gave up all passwords.
If the above applies to you, then clean your house and research a lawyer NOW. If you have not already got a visit, you may get one soon in the next days as the seized data is shared with other law enforcement agencies. Preparation is key, destroy or move evidence as long as you still can.
Did not use Tails? Uninstall all tools you used for DNM activities from your computer, back up your personal documents and DBAN your computer.
Do you not fall under the above categories? You should still be careful as vendors got busted too who could give out your address.
Swapped vendor keys: at least on vendor seemed to have a wrong PGP key about 5 days ago https://www.reddit.com/r/DarkNetMarkets/comments/6ne0cd/warning_vendor_ice_queen_on_hansa_grams_search_of/
It could be an isolated incident or connected to the takeover.
Future tips:
DO NOT ORDER FOR A WHILE as dutch law enforcement stated that they took over vendor account on other market as well with their phished login credentials.
Dream may be compromised too. The user /u/luckyduckquack posted 10 days ago that hansa was also compromised. Now he posts that dream is also compromised. It is not certain, but be careful before running to a new market. Do not give law enforcement the triple-combo.
Never use the same username, password, PIN or PGP key-pair on more than one market. If an attacker or even rogue market staff gains access to your account on one market, he could easily break into the other ones as well and do even more damage (like stealing your coins or deleting your account).
Store the vendor's PGP key and do not get it every time from the DNM because they could swap it out.
Use 2FA.
Before using a new vendor, verify that he has the same PGP keys on all market by either checking the market he is on manually or using the grams infodesk.
Many people here order from home living with family and friends. In the case of a raid, all computes will be seized. Back up all family data and store off line just in case.
Generally read and follow the DNM bible during the whole drama. It contains much useful information that you might not know despite using the DNMs for a while.
This has happened before people. When Silkroad first got taken down everyone freaked out and thought it was the end. So much insanity, new markets coming then exit scamming, accusations of honey potting. I knew someone that was stupid and used an unencrypted address the day before SR was officially seized. Nothing ever happened. We layed low for a while until the markets stabilized and we changed how we used the markets.
The markets will come back and adapt with new security measures. They always do. There's too much money involved for this niche to go away