The change is part of an update by the Food and Drug Administration to standardise the drug codes used to identify medicines in the US.

Martin Lewis urged mobile phone users to screenshot and email themselves after dialling a 5-digit code on their iPhone, Samsung or Google mobile phone.

What's a verification code, and why are they so important? Six-digit verification codes are a form of two-factor authentication, a process that helps keep your important online accounts secure. For ...

But there are ways owner can protect their devices, as well as important information and one way to do this is by using a simple code. The useful tip has been backed by finance guru Martin Lewis, who ...