Microsoft’s software licensing terms are harming competition in the cloud computing market, an investigation ordered by the UK antitrust regulator has found, driving up costs for its Big Tech rivals.

The UK’s top antitrust body just named names, and it is Microsoft and Amazon. On Thursday, the Competition and Markets Authority (CMA) said both companies are abusing their hold on the cloud infrastructure market and called for a deeper investigation under the country’s new digital regulations.

Amazon and Microsoft harming competition in cloud computing, finds CMA - It raised concerns over the way Microsoft charges Amazon and Google to use its software, which it said is driving up costs.