Tech firms face fines of up to 10 per cent of their turnover if they fail to protect online users from harm, ministers will confirm today.
Under a new online harms bill, businesses will have a new 'duty of care' to protect children from cyberbullying, grooming and pornography.
However there are also concerns the legislation does not go far enough to protect legitimate news on the internet, and social media news feeds could be censored by tech giants.
Larger web companies such as Facebook, TikTok, Instagram and Twitter that fail to remove harmful content such as child sexual abuse, terrorist material and suicide content could face huge fines - or even have their sites blocked in the UK.