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An iPhone user attends a rally at the Apple flagship store in New York City to support the company's refusal to help the FBI access the cell phone, Feb. 23, 2016. Xinhua/Wang Lei via Getty Images

Apple Inc. is said to be developing security measures to make it even harder for the government to break into iPhones, the New York Times reported on Wednesday, citing people close to the company and security experts.

"Apple engineers have already begun developing new security measures that would make it impossible for the government to break into a locked iPhone using methods similar to those now at the center of a court fight in California," the Times said.

(Reported by Washington Newsroom; Editing by Lisa Shumaker)