The report underscores the mounting concerns associated with the use of facial recognition technology by law enforcement.

The selection is a huge warning shot to big tech companies on privacy and anti-competitive behavior.

Researchers say the technology is secure, though it touches on lingering anxieties.

It's a blow potentially even more serious than moves by Google and Apple over the weekend to suspend it from their app stores.

The findings point to “a wider culture that favors shortcuts over security in the manufacturing process," one researcher said.

The advisory comes as TikTok faces greater scrutiny for its security practices from both U.S. government agencies and corporations.