Pwned Passwords are half a billion real world passwords previously exposed in data breaches. This exposure makes them unsuitable for ongoing use as they’re at much greater risk of being used to take over other accounts. They’re searchable online below as well as being downloadable for use in other online system.
Nada is a service that gives you up to 10 in-boxes that you can use when registering to un-trusted web sites. Instead of giving these web sites your real email address, you give them one our bear supplies. This way Mr bear has lots of spam to eat and your real inbox is protected.