Spoofing

Spoofing is when someone disguises an email address, sender name, phone number, or website URL—often just by changing one letter, symbol, or number—to convince you that you are interacting with a trusted source.

For example, you might receive an email that looks like it’s from your boss, a company you’ve done business with, or even from someone in your family—but it actually isn’t.

Criminals count on being able to manipulate you into believing that these spoofed communications are real, which can lead you to download malicious software, send money, or disclose personal, financial, or other sensitive information.

Example email addresses:

rnicrosoft.com - where instead of an "m" it was replaced with "r" and "n"