Imagine this: you’re sitting at home, and your cell phone rings. You don’t recognize the number, but you pick up anyway because you’re expecting a call. The voice on the other end of the line is covered in static, but it sure sounds like one of your grandkids. They begin to tell you that they’re having an emergency, and they need you to send them some money, immediately.
You jump up, rush to the store, and wire them some money from your savings. You call them back at their usual phone number and they have no idea what you’re talking about. There’s no emergency, and they have no idea who you just wired that money to.
Another scenario: you get a text message from your bank saying that your account has been compromised. The message says that in order to protect your assets, you need to click a link in the text message and input your login and password. The link takes you to a page that looks just like your bank’s website, though it does seem to glitch after you enter your information. You assume all is well, until you check your account later and find your accounts drained.