Consumer champion Which? has discovered a number of risks associated with recycled numbers. Since there are only a limited number of 11-digit combinations that begin with the 07 prefix, mobile ...

Dennis Yu, a programmer at Sunnyvale's Yahoo Inc., learned the hard way that because banks don't have enough account numbers to go around, they quietly recycle numbers that belonged to past customers.

Your old phone number may be exposed to privacy, security risks, and, at worst, hacking after mobile carriers recycle it, research reveals. Adrianno Calvo/Pexel Your old phone number may be exposed to ...

Reused phone numbers are leaving Britons exposed to hacking, nuisance calls or being cut off. An investigation by consumer watchdog Which? has uncovered various risks posed by existing phone numbers ...