They Can Use It for Phishing
Phishing is a strategy scammers use to retrieve information about you. If a scammer has your email address, all they need to do next is figure out your password, and phishing is a quick way to do it. They can create a fake website or pretend to be a company you trust, like your bank. You might “log in” to that phony website with the same password as your email. They’ll record that information and instantly have what they need to log in to your accounts to take control of them.