HM Revenue and Customs (HMRC) has issued a stark warning to TikTok users following the uncovering of a suspected £153 million tax fraud scam. The public is being cautioned against sharing their tax details online after the discovery.The scheme allegedly involved individuals posting advertisements on the popular social media platform, enticing users with promises of easy financial rewards. In exchange, victims were reportedly asked to hand over sensitive tax information, including business VAT registration details or personal self-assessment credentials. These details were then purportedly exploited to submit fraudulent tax repayment claims to HMRC.The warning comes after two Romanian men, aged 22 and 25, were apprehended by HMRC officers in east London on 23 April in connection with the alleged fraud. HMRC is now urging the public to exercise extreme caution regarding any online posts that boast of 'risk-free' financial gains in return for sharing personal information.The two Romanian men involved in the alleged TikTok scheme were interviewed under caution and released on bail pending further inquiries (AP)The investigation is still ongoing into the alleged scam but HMRC fraud detection systems have identified and blocked £153 million of repayment claims.It is believed that multiple claims were detected and stopped from several businesses who may have been recruited by the two men.Simon Grunwell, head of cybercrime investigations at HMRC’s Fraud Investigation Service, said: “You should protect your personal tax details in the same way you protect your bank details.“Claims of quick, risk-free cash in return for sharing your personal information are a scam. They aim to defraud you and the taxpayer.“Anyone who comes across adverts on social media or is approached in any way with promises of easy money through their tax credentials should think twice and report it on gov.uk.”Victims who give out their tax details risk having their identity stolen or bank accounts frozen.They may also be liable to repay the money or even face prosecution, according to HMRC.The two Romanian men involved in the alleged TikTok fraud scheme were interviewed under caution and released on bail pending further inquiries.They were arrested on suspicion of various offences including fraud by false representation, unauthorised access with intent and money laundering.