@mark you don't. I would suggest to go to the source, have I been powned: https://haveibeenpwned.com I have used that site the past, It looks vert legit and open about what it do. There is also a keepass (password mananger) plugin that use the site and they (recently ) added a add for 1password on the site. If any shady stuff was going on, I am sure these community/company would have reacted. But as Troy statet in the FAQ
How do I know the site isn't just harvesting searched email addresses? > > You don't, but it's not. The site is simply intended to be a free service > for people to assess risk in relation to their account being caught up in a > breach. As with any website, if you're concerned about the intent or > security, don't use it. > The ff page do exactly the same as https://haveibeenpwned.com, but is less transparent. I dont see any reason to use the FF site instead of https://haveibeenpwned.com -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/ffd7d262-7844-4e73-aa32-8c67e9d9b81d%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.

