Feel Safe Again

Most people don't care about privacy. We do.
Zero Knowledge cloud solutions for collaboration and backup.

Discover Semaphor SpiderOakONE Backup


Zero Knowledge

Our systems have Zero Knowledge of your data. In non-technical terms it means that your data is 100% private and only readable by you. No plaintext data, no keys, or file meta data is ever stored on our servers. All this ensures absolute confidentiality of your data.

Dropbox is hostile to privacy, unlike 'zero knowledge' SpiderOak. - Edward Snowden

10 Years and Counting

We've been the leader in privacy solutions for users just like you since before most people started worrying about online privacy. And we plan to keep true to our principles long into the future. Read blog


Something to Protect

Privacy online seems to get a bad rap. We're told, "the only people who care about privacy are those who have something to hide." Well, we emphatically disagree. The notion we should not care about privacy is largely promoted by companies who depend on you being their product. It's not about what people want to hide, it's really about being able to choose that something is worth protecting.

Collaborate Online

Secure, private communications for ideas that matter. Protect them with Semaphor, the world's first Zero Knowledge collaboration tool. Coming soon.

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Back Up Your Files

SpiderOakONE is the leading private backup solution and is 100% Zero Knowledge. Get a ton of space for only $12 a month. Groups and enterprise solutions available.

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