10:50 AM EDT, 07/17/2025 (MT Newswires) -- (Updates with Tencent's response in the fourth paragraph and Alibaba's ( BABA ) most recent stock move in the last paragraph.)

Alibaba Group Holding's ( BABA ) AliExpress, TikTok and WeChat are facing data privacy complaints from Austrian advocacy group noyb, which alleged Thursday that the companies did not comply with European Union law requiring disclosure of users' personal data.

The companies have failed to comply with access requests under Article 15 of the EU's General Data Protection Regulation, deterring users from exercising their right to privacy, noyb said.

When users requested their personal data, "TikTok only provided part of the complainant's data in an unstructured form that was impossible to understand. AliExpress provided a broker file that could be opened only once," noyb said. WeChat "just completely ignored" the complainant's request.

"WeChat complies with local laws and regulations in the markets in which we operate, and is committed to protecting user privacy and data security," a spokesperson for Tencent, WeChat's parent company, told MT Newswires in an emailed statement.

Alibaba ( BABA ) and TikTok did not respond to MT Newswires' requests for comment.

Shares of Alibaba ( BABA ) added 1% in recent trading activity Thursday.

Price: 116.97, Change: +1.24, Percent Change: +1.07