This story is available exclusively to Business Insider subscribers. Become an Insider and start reading now. Have an account? .

snowden

Edward Snowden during a recent interview on German television  screenshot

NSA whistleblower Edward Snowden dropped his two cents on file storage security in an interview with The Guardian on Thursday.

He thinks Dropbox, the cloud storage firm with over 200 million users, is “hostile to privacy,” and urged people to switch to what he calls more-secure storage services like SpiderOak. 

“Dropbox is a targeted wannabe PRISM partner," Snowden told The Guardian. "They just put Condoleezza Rice on their board, who is probably the most anti-privacy official you can imagine ... So they’re very hostile to privacy."

Snowden said that a company like SpiderOak is better because it offers “zero knowledge,” a term used to describe services that have zero access to the data they are storing on their servers.

“SpiderOak has structured their system in such a way you can store all of your information on them with the same sort of features that Dropbox does, but they literally have no access to the content. So while they can be compelled to turn it over, the law enforcement agencies still have to go to a judge and get a warrant to actually get your encryption key from you,” he said.

The encryption key he’s referring to is a long, unique number code only the user has access to. Anyone other than the user, including SpiderOak itself, cannot access the user’s files unless the government issues a search warrant.

Founded in 2006, SpiderOak offers online storage service similar to Dropbox. When reached by Business Insider, SpiderOak CEO Ethan Oberman said he didn’t want to criticize anyone, but today was "a validation of what we’ve been trying to do over the past many years."

"From the very beginning we've always believed privacy needed to be embedded in the product," Oberman told Business Insider. "If you’re looking at which company can actually see the data on their servers and which cannot, if that is the only measurement for your judgment, then absolutely SpiderOak does a better job than Dropbox."

SpiderOak currently has about a million users. But its site traffic saw huge spikes "across the board" today with 5 to 6 times higher signup rates, according to Oberman.

Dropbox says it's also doing its part to protect user information.

In a statement to Business Insider, Dropbox said:

Safeguarding our users’ information is a top priority at Dropbox. We were not involved in PRISM, and would resist any program of its kind. We’ve made a commitment in our privacy policy to resist broad government requests, and are fighting to change laws so that fundamental privacy protections are in place for users around the world. To keep our users informed, we also disclose government requests in our Transparency Report.

Read next

Eugene is Business Insider’s Chief Tech Correspondent, where he leads coverage of Amazon. His reporting spans the company’s retail operations, AWS, Alexa, and its secretive internal work culture.Previously, he worked at CNBC, Fortune Magazine Korea, and Japan's Yomiuri Shimbun. He holds degrees from NYU and Columbia University’s Graduate School of Journalism.In 2022, Eugene broke a story uncovering Amazon’s practice of deceptively enrolling customers in Prime and deliberately making cancellation difficult. A year later, the Federal Trade Commission sued the company, citing his reporting. That case culminated in a record $2.5 billion settlement in 2025.His reporting has earned multiple honors, including the SF Press Club’s Bay Area Journalism Award and SPJ NorCal’s Excellence in Journalism Award.Eugene lives in the Bay Area. Contact him via email at ekim@businessinsider.com, or Signal, Telegram, or WhatsApp at 650-942-3061. Use a personal email address, a nonwork WiFi network, and a nonwork device; here's our guide to sharing information securely. ExpertiseAmazon, Jeff Bezos, Andy Jassy, e-commerce, and cloud computing.Popular ArticlesAmazon:Internal Amazon emails give an exclusive look at how CEO Andy Jassy has started to run the company, with obsessive attention to the retail business and what some employees feel is micromanagingAndy Jassy will be the next CEO of Amazon. Insiders dish on what it's like to work for Jeff Bezos' successor, who built AWS into a $40 billion business.Internal documents show Amazon has for years knowingly tricked people into signing up for Prime subscriptions. 'We have been deliberately confusing,' former employee says.Inside Amazon's flailing brick-and-mortar ambitions: missed projections, pressure to cut costs, and a war with Whole FoodsInside Amazon's complex employee-review system, where workers feel left in the dark and managers expect to give 5% of reports bad reviewsAfter 28 years, 'Day 2' finally arrives at AmazonAWS, Alexa, healthcare:Inside Amazon's struggle to break into the lucrative market for SaaS business applications, including an internal pitch to buy $38 billion HubSpotInside Amazon's struggle to crack Nvidia's AI-chip dominanceAmazon's AI data center dream runs into the reality of 'zombie' facilities, higher costs, and labor shortagesAmazon is gutting its voice assistant, Alexa. Employees describe a division in crisis and huge losses on 'a wasted opportunity.'Amazon is working on a new 'Remarkable Alexa,' but internal politics and technical issues plague the projectAmazon projected huge losses from its healthcare business in 2024, but strong sales growth, internal document reveals