These usually begin with an email phishing for access to your email account. They will act as your email provider and give you a link to change your access password.
I never, ever even click those.
Anything of importance I do my own check ups.
NEVER NEVER NEVER use a login link sent to you in an email. It is very easy to create a web page that looks like the real one and then use it to steal your information.
My bank uses a 3 or 4 multiple choice questions based on credit history to authenticate. (what addresses have you been associated with, car make and model etc.) Information that would have had to have come from a credit report file. Answering those questions left my account wide open. Given the Experian data breach, using this method of authentication is ridiculous.