Asking for User ID when ID is always an email

1. Should you use email for user ID?
2. Is username always your email address?
3. Is email ID and user ID is same?
4. What does IT mean when they ask for user ID?

Should you use email for user ID?

The best way to protect yourself? Use something other than your e-mail address as your ID for bank account(s) and other online accounts that store your birth date, Social Security number, and other sensitive information.

Is username always your email address?

Most people think email names and email usernames are the same things. They're not. An email name (also known as a sender name) is the name that's displayed when you send an email. Your email username, however, is your email address.

Is email ID and user ID is same?

Your user ID is the unique email address that was created for you to use when you sign in to Microsoft 365.

What does IT mean when they ask for user ID?

A user identification or user ID is an entity used to identify a user on a website, software, system or within a generic IT environment. It is the most common authentication mechanism used within computing systems.