I just tried it with an email address that I knew was leaked on yahoo when they were hacked as well as 2 others that I believed to be safe. Not only did the site get it right, it told me about 2 other leaks of the yahoo address that I didn't know about.
I just tried it with an email address that I knew was leaked on yahoo when they were hacked as well as 2 others that I believed to be safe. Not only did the site get it right, it told me about 2 other leaks of the yahoo address that I didn't know about.