Registering on Mars Market
Registration on Mars Market is short and asks for less than you might expect. An untraceable email and a username, and that is the whole of it. You do not have to confirm the email, and there is no phone number and no real name. The two things that matter happen right after, and they are the part most people skip.
What it asks for
An email you do not use anywhere else, and a username that is not your name. The email is for account notices, not for identity. The username is the only name anyone sees. Keeping both generic is the point, because the less of you is in the account, the less there is to leak if the account is ever exposed.
The two things to set up
Set a long passphrase and turn on two factor login the moment the account exists. Not later, not after the first order, immediately. These two are the cheapest protection an account has, and they are the difference between a stolen device being an inconvenience and a stolen device being a loss.
Write down the mnemonic
The storefront generates a recovery mnemonic the first time you log in. Write it down on paper or an encrypted file on a separate device, not in the browser profile. The mnemonic is the only thing that recovers the account if you lose the passphrase, and if it is in the same place as the browser, a single lost device takes both.