Troy Hunt, a web security consultant, has come up with an unusual punishment for spammers.
In his opinion, the punishment should be proportionate to the fault, so the developer created conditions for spammers to spend time on meaningless actions, just like the people who read such emails.
In his mailbox, Hunt has created a folder called "Password Purgatory". There he moves spam, and then a script automatically creates a reply email saying that Hunt is interested in the offer. There's also a link to a page that asks you to leave your contacts. All you have to do is enter your email address and password. And this is exactly the second step where the spammer falls into a trap.
If he comes up with a password, the system offers to change it. For example, the password should not end with "!" or "1", should contain repeating characters, should include at least one emoji, and so on.