BRUSSELS, March 25 —The EU today hit Apple, Google parent Alphabet and Meta with the first ever probes under a mammoth digital law, which could lead to big fines against the US giants.

Among six firms named as market “gatekeepers” under the EU’s landmark Digital Markets Act—along with Amazon, TikTok owner ByteDance and Microsoft—the companies have been obliged to comply with the new law since March 7.

“We are not convinced that the solutions by Alphabet, Apple and Meta respect their obligations for a fairer and more open digital space for European citizens and businesses,” said the EU’s internal market commissioner, Thierry Breton.