TikTok has been fined €530 million over illegal transfers of personal data from Europe to China in the latest rebuke of Big Tech by a European public authority.

The Irish Data Protection Commission (DPC) found on Friday that TikTok had infringed the EU's General Data Protection Regulation (GDPR), and ordered the company to comply with the law within six months.

Personal data transfers from the EU to China are prohibited under the GDPR, as China is deemed to have an inadequate level of personal data protection. European regulators are particularly concerned by alleged links between the Chinese government and TikTok's owner, the Beijing-based company ByteDance.