Apple co-founder Steve Wozniak prefers to feel like he "owns" his digital data and feels uncomfortable uploading it to or downloading it from another company's cloud servers.

That's why in a recent Q&A session held after Mike Daisey's play, "The Agony and the Ecstasy of Steve Jobs," Wozniak warned the audience of the dangers in cloud computing.

"I really worry about everything going to the cloud," he said, per Agence France-Presse. "I think it's going to be horrendous. I think there are going to be a lot of horrible problems in the next five years."

According to ZDNet, making a purchase via cloud often means consumers are not actually buying a product, but instead buying a license to use it. This is true even in the Apple App Store's Terms and Conditions, which reads "Apple is the provider of the App and Book Services that permit you to license software products and digital content."

Apple has used cloud technology since the early 2000s, including services such as MobileMe, which then morphed into iCloud last fall. The feature promises to do more than "just store your content," but to also "seamlessly integrate" all iOS devices, per the Apple website.

So is Wozniak knocking the company he helped create?

Maybe -- and that wouldn't be the first time. Earlier this summer, Wozniak criticized Siri, the iPhone's voice-controlled assistant, telling the Times Union that he was a bigger fan of the program when it was simply a downloadable app not owned by Apple.

But his cloud concerns are not completely far-fetched. Just this last weekend, tech blog Gizmodo's Twitter account was hijacked by a hacker who had breeched former contributor Mat Honan's iCloud account, allowing the hacker access to Honan's Macbook Air, iPhone, iPad and Twitter account. Ultimately this linked the hacker to passwords used for Gizmodo's resources.

"A lot of people feel, 'Oh, everything is really on my computer,' Wozniak stated at the Q&A. "[B]ut I say the more we transfer everything onto the web, onto the cloud, the less we're going to have control over it."

How do you feel about storing data on physical devices verses storing it in the cloud? Do the conveniences outweigh the possible digital danger? Sound off in the comments section below or tweet us at [@HuffPostTech].

Related on HuffPost:

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  • 'Failure'

    In December 2011, Wozniak <a href="" target="_hplink">told a group of entrepreneurs in Bangalore</a> that three Apple computers from the 1980s were "failures" because important decisions had come from company executives instead of "the guys at Apple." " ... if the guys at Apple had built the machine that they would love, it would have been successful," <a href="" target="_hplink">he said, according to NDTV</a>. "It came instead from formulas from Apple executives. Marketing people were in charge and some very bad decisions got made, in my opinion. There were hardware failures. You put out a product that has failures right away, and even if you fix it a year later, it just doesn't sell." He elaborated <a href="" target="_hplink">in a follow-up answer</a>: "The Apple III was a failure, the LISA was a failure, and the Macintosh was a failure. It was only by modifying the Macintosh hugely and over time that we made it a good computer." <em><a href="" target="_hplink">Read the entire interview at</a>.</em>

  • Mac OS X: 'Not Ready For Prime Time'

    In a <a href="" target="_hplink">2001 fireside chat</a> at the MackHack conference in Dearborn, Mich., the Woz criticized Apple's newly-released operating system, Mac OS X. <a href="" target="_hplink">From Macworld</a>: <blockquote>Woz has installed Mac OS X on his new iBook, which he says is "the supreme balance" in a portable computer. He has had three bad experiences with the new OS, and his feeling are "negative overall." "I agree with the writer who said that it is not ready for prime time," said Woz. "But, it came out more beautiful than I thought it could." </blockquote>

  • No 3G?!

    Wozniak was not happy that the <a href="" target="_hplink">first generation iPhone</a> didn't come out with 3G technology. "To tell you the truth, I was disappointed ... half the phones in the AT&T store were 3G already," <a href="" target="_hplink">he said during a March 2008 trip to Australia, according to <em>The Inquirer</em></a>. Just over a year later, in July 2008, <a href="" target="_hplink">the iPhone 3G was released</a>.

  • Restrictions...

    <a href="" target="_hplink">In a 2008 interview</a> with <a href="" target="_hplink">Sky News Australia</a>, Wozniak expressed his dissatisfaction with the restrictions on the iPhone, such as the closed software environment. "...the way Apple has introduced the iPhone with a lot of restrictions what you can and can't do with it ... those sorts of things bother me because it sort of indicates Apple's stepping into that characteristic that we attributed to other bad companies in the past." (This part of the interview comes at 6:48)

  • The Woz Hearts His Droid

    <a href="" target="_hplink">In an interview with The Daily Beast's Dan Lyons</a>, Woz expressed his love for the Android. "My primary phone is the iPhone," Wozniak said, <a href="" target="_hplink">according to The Daily Beast</a>. "I love the beauty of it. But I wish it did all the things my Android does, I really do." He elaborated, saying that Siri as an iPhone 4 app was better than Siri as an iPhone 4s app: "With the iPhone 4 I could press a button and call my wife. Now on the 4S I can only do that when Siri can connect over the Internet. But many times it can't connect. I've never had Android come back and say, 'I can't connect over the Internet.'" Woz also <a href="" target="_hplink">said that he preferred Android's navigation system</a> to the iPhone's.

  • Battery Life!

    In <a href="" target="_hplink">the interview with The Daily Beast</a>, Woz complained about the iPhone 4S's battery life. "With the iPhone, something happened with the new OS or the new phone, and it just started running through the battery so fast," <a href="" target="_hplink">he said, according to The Daily Beast</a>. "I've had a lot of issues with things I have to turn off just to save the battery life."