Each and every day breaches happen on the internet, Some tools have been developed to search for breaching email or to check if you have been a victim of a breach, atleast i have been on. Mozzila firefox has one that checks for and notifies for breaches. One those that is famous is theHarvester, which i can say it's sole purpose is to harvester email accounts from major search engine. some of it's features include;
  • Searching emails accounts(for example gmail.com, hotmail.com and more)
  • Searching for folks from the internet.