TALK, SHARE & STORE IN YOUR CONFIDENTIAL CLOUD

Encrypted group chat, file sharing and backup. Protect yourself against ransomware and data loss.

Secure-by-default products for your home, small business and enterprise.

Semaphor: Encrypted Chat
ONE: Secure Backup

Mentioned or Recommended By

11 years and counting

We believe our computers and phones should not make us vulnerable, but instead be safe extensions of ourselves and our work. That’s why we’ve been building No Knowledge, secure-by-default products for the past 11 years.

We are working to create a world where privacy is the norm, end-to-end encryption is the standard, and security and usability are synonymous.

Snowden: Dropbox is hostile to privacy, unlike 'Zero Knowledge' SpiderOak

“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.”

Edward Snowden, The Guardian
SpiderOak raises $3.5 million to store data with 'Zero Knowledge'

“Every time (a breach) is announced, the universe of people and companies that understand and value true privacy grows, which ultimately drives higher demand for SpiderOak’s truly private solutions”

Amina Elahi, Chicago Tribune
2 Slack replacements that can keep your group messages private

“Semaphor uses Zero Knowledge security, ensuring everything is encrypted before being sent from a device and is only decrypted on devices that possess the proper keys.”

Ben Dickson, The Daily Dot
Review: SpiderOak One

“Strong privacy features. Unlimited computers allowed in an account. Good for people who like a lot of control.”

★★★★☆
Jill Duffy, PCMag.com