Caller and sender IDs can be useful, showing you a number or name when you get a call or text. But criminals can use easily available software to change the number displayed on your phone – copying a trusted contact or business – to try to trick you into answering.
Our scams expert, Chiara Cavaglieri, explains how number spoofing works and how you can protect yourself against it.
Tactics revealed
Source: Which? (11 Sep 2025)
