Phreakers (telephone hackers) found technical means to fake caller ID numbers, making calls appear to have come from different phones. They may also reveal 'number withheld' numbers. IP telephony makes it even easier to spoof caller ID through websites that offer this as an 'entertainment service'. No hardware or technical skills required. Here's another article on this. It's not so funny if someone spoofs your home phone number to access your voice mail box, or to authenticate a new credit card stolen from the post ...
More IT fraud links here
This has been around for quite a while, I first tested one of these services out at least a year and a half ago. For a sample, you can try Text Grams. Type a message and select to and from numbers and it will call and play the typed message.
ReplyDelete