In a new interview on ABC's World News Tonight, Apple CEO Tim Cook sat down to discuss his company's ongoing encryption feud with the FBI. Speaking with ABC's David Muir, Cook reiterated Apple's opposition to a court order to assist the FBI in unlocking an iPhone 5c used by one of the San Bernardino shooters. Right off the bat, the Apple CEO spoke out against the software that the FBI is requesting the company to write, going so far as to call it the "software equivalent of cancer." From ABC:

The only way to get information – at least currently, the only way we know – would be to write a piece of software that we view as sort of the equivalent of cancer. We think it's bad news to write. We would never write it. We have never written it – and that is what is at stake here," he said. "We believe that is a very dangerous operating system.

Cook went on to state Apple's obligation is to protect its customers first, reiterating that this isn't a case about one phone, but rather hundreds of millions:

This case is about the future. If we knew a way to get the information on the phone – that we haven't already given – if we knew a way to do this, that would not expose hundreds of millions of other people to issues, we would obviously do it. ... Our job is to protect our customers.

Cook has long been an outspoken proponent of the importance of encryption's role in device security for consumers. The Apple CEO previously issued a written response to the court order in which he argued that complying with the request to create a backdoor could endanger the security of Apple devices for millions.

You can now watch the full, extended version of ABC World News Tonight's interview in the video embedded below.