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Apple CEO Tim Cook has lobbed a few quick jabs at the likes of Facebook and Google for making money off users' personal data in the past. But Cook unloaded during a speech Tuesday night, in which he bemoaned the state of data privacy and blamed tech titans for the problems.

"I’m speaking to you from Silicon Valley, where some of the most prominent and successful companies have built their businesses by lulling their customers into complacency about their personal information," Cook said at the EPIC’s Champions of Freedom event in Washington, D.C., reported a TechCrunch journalist who was in attendance.

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"They’re gobbling up everything they can learn about you and trying to monetize it. We think that’s wrong," Cook added.

Related: Apple’s Tim Cook takes a swipe at Google, Facebook

Cook elaborated at length on themes he has mentioned previously, namely Apple's business model that depends on selling products, not users' data. He never mentions Facebook and Google by name, but they are the two largest tech companies that offer users services for free while making money on the personal information those users provide.

"You might like these so-called free services, but we don’t think they’re worth having your email, your search history and now even your family photos data mined and sold off for God-knows-what advertising purpose," Cook said Tuesday. "And we think someday, customers will see this for what it is.”

Related: These Tech CEOs Skipped Obama's Big Cyber Summit

An Apple spokesman told NBC News the company does not "have anything to add to Tim's remarks."