Both the American Civil Liberties Union (ACLU) and the Electronic Frontier Foundation (EFF) have announced their support for Apple in its opposition to a court order requiring the company to help unlock the iPhone 5c of one of the San Bernardino shooters. The EFF says that it will be filing an amicus brief in support of Apple's stance, arguing that this order could set a precedent for future cases.
From the EFF:
Essentially, the government is asking Apple to create a master key so that it can open a single phone. And once that master key is created, we're certain that our government will ask for it again and again, for other phones, and turn this power against any software or device that has the audacity to offer strong security.
Meanwhile, the ACLU had this to say:
The government's request also risks setting a dangerous precedent. If the FBI can force Apple to hack into its customers' devices, then so too can every repressive regime in the rest of the world. Apple deserves praise for standing up for its right to offer secure devices to all of its customers.
In response to the court order, Apple CEO Tim Cook posted a letter to customers, explaining the company's opposition to the measure. Like the EFF, Apple is worried about the precedent it would set, and what Apple might be asked to do in the future. Apple has also received statements of support in their position from the co-founder of WhatsApp, along with Google CEO Sundar Pichi.