Hacking VoIP

Caller ID Spoofing

Caller ID spoofing does exactly what its name implies: It changes the appearance of the source phone number of a telephone call. Caller ID spoofing can be innocent enough, allowing the kids who grew up with *69 to finally make phone calls and not feel bad about getting scared and hanging up at the last second; however, it can have many malicious applications as well. For example, the phone number of your bank can be spoofed, leading to another form of phishing attacks. Spoofing a bank number could allow attackers to call the phone number of everyone in the phone book and impersonate a trusted financial institution. Caller ID spoofing can also force someone to answer a call from someone he or she has been trying to avoid.

The ...