The European Union says it will outline steps to compel Apple to open up its iPhone and iPad operating systems to competing technologies under the bloc’s tough new digital rulebook, which threatens hefty fines for breaches.

The EU said Apple must make sure devices made by rivals work with its iPhones and iOS operating systems in accordance with the Digital Markets Act

By Foo Yun Chee BRUSSELS (Reuters) -EU antitrust regulators launched proceedings on Thursday to ensure that Apple complies with landmark rules requiring it to open up its closed ecosystem to rivals or risk a possible hefty fine.

Apple just received a very clear message that it still has a lot to do if it hopes to comply with Europe's new digital antitrust rules. Why it matters: The tech giant, which has built its entire business around its own closed-world ecosystem,

Many of the law’s provisions apply not at the company level, but rather only to specific products that the EU designates as core platform services. Apple’s iOS, App Store and Safari received that designation last September,

EU antitrust regulators on Thursday launched proceedings to ensure that Apple complies with landmark rules requiring it to open up its closed ecosystem to rivals. Under the so-called specification proceedings,

EU antitrust regulators on Thursday warned Apple to throw open its fiercely-guarded proprietary software to rivals — or risk the prospect of major fines from. The European Commission launched so-called specification proceedings that will spell out what Apple has to do to abide by the Digital Markets Act (DMA),