WhatsApp users need to switch on old phone for verification to use app on new device
"If you need to switch your WhatsApp account to a new device? we want to double-check that it's really you. From now on, we may ask you on your old device to verify that you want to take this step as an extra security check. This feature can help alert you to an unauthorized attempt to move your account to another device," WhatsApp said in a statement.
WhatsApp said that it is concerned about malware that infects a mobile phone in much the same way a virus infects a computer.(Image: Reuters)