Millions of people have been scammed on platforms owned by tech giants since they signed a ‘world first’ pledge to do more to tackle online fraud, new Which? research has found.

The consumer association is calling on the UK government to bring forward implementation of the Online Safety Act and fines for firms that fail to stamp out online fraud, as its research reveals around 6.6 million people in the UK have lost money to online scams in the last 12 months.