Feel Safe Again

Encrypted group chat, file-sharing, and backup for teams and businesses.

Discover Semaphor SpiderOak ONE Backup

For over ten years spideroak has been committed to Zero Knowledge cloud solutions for people and teams that care about security.


Encrypted group chat and file sharing for teams

Discover Semaphor

Spideroak ONE

Reliable, encrypted backup for everything at home and work

Learn More


Carefree, Simple, encrypted password manager


  • Keep track of all of your passwords
  • Strong password generator
  • Quick search
  • Sync across all of your devices
  • Manage your personal information

10 Years of Privacy

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 more on our blog.



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.

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 your life's work is worth protecting.

Real-time Collaboration

Secure, private communications for ideas that matter. Protect them with Semaphor, the world's first Zero Knowledge group chat and file-sharing tool.

Learn More


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

Learn More