Apple and Google are under fire from furious MPs who accuse them of deliberately stalling a vital anti-theft measure - all to protect their bottom line.

The world's biggest tech firms were told 18 months ago by the Metropolitan Police to make a change that could make stolen smartphones worthless to criminals.

But despite soaring phone theft – a staggering 80,000 devices were stolen in London last year alone – neither company has acted.

Now MPs have slammed the delay, warning that criminal gangs are cashing in while tech giants rake in billions.

'It feels to a lot of people like you're dragging your feet … and actually sitting behind this is a very strong commercial incentive,' said Conservative MP and former Home Office minister Kit Malthouse.