Secure Communication and Collaboration

Complete security and trust for your most valuable information. SpiderOak’s CrossClave is designed for organizations with exacting security needs and thoroughly collaborative teams. Share any file type, chat with any team member, or even call each other with the same best-in-class security for each method of communication.

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Why Crossclave?

The complete secure file sharing, communication, and collaboration suite, built with Zero-Trust for ease of use

Don’t compromise security for speed or ease of access – CrossClave provides all three. Designed for organizations with both exacting security needs and thoroughly collaborative teams. Give your organization’s confidential, private, and sensitive data the protection it deserves.

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crossclave consumer data

Commercial Data Classification:

  • Confidential is the highest level of commercial data classification. This is used for data that is extremely sensitive and for internal use only. A significant negative impact could occur for a company if confidential data is disclosed. (Confidential data is company data)
  • Private is used for data that is of a private or personal nature and intended for internal use only. A significant negative impact could occur for the company or individuals if private data is disclosed. (Private data is data related to individuals)
  • Sensitive data labels are used for data that is more classified than public data. A negative impact could occur for the company if sensitive data is disclosed.
  • Public data is the lowest level of classification. This is used for all data that does not fit in one of the higher classifications. Its disclosure does not have a serious negative impact on the organization.
  • Consumer: designed specifically for individual or small groups of users. Privacy focused, ephemeral.
  • Business: designed specifically for enterprise users. Confidentiality focused, persistent.

CrossClave is secure in any environment

Protect data confidentiality, integrity, and availability on any network: secure cloud, hybrid, or private.

CrossClave’s design removes the network and the server as vulnerabilities. Plain text is only ever available to the endpoints of the system, so only those with a need to know are in the know. Because of this Zero-Trust design, CrossClave is ideal for:


Feature-rich chat in every space. Only those in the space have access to chat or file data.

Crossclave Puts Secure Collaboration First

Security is not an add-on.

Add team members to spaces. Roles and access controls can be determined by policy or adjusted manually on an as needed basis.

Most of the commercially available communication and collaboration offerings on the market today are designed exclusively for operational efficiency, i.e., increasing the output and profitability of a dispersed virtual workforce.

For most companies, security only becomes a priority after something happens, and something always happens. When it does, a reactive approach to security is little comfort to users whose sensitive data and private communications have been exposed to the outside world.

CrossClave is built, from the ground up, with security in mind. Because the security is baked-in, not bolted-on, organizations with sensitive, critical information can finally take advantage of remote collaboration and communication efficiencies that can be realized with a productivity suite.

Make Security a Priority


CrossClave’s Security Architecture

Zero-trust and Distributed Ledger

CrossClave leverages zero-knowledge encryption and distributed-ledger capabilities to render entire categories of vulnerabilities obsolete and extend a level of protection to remote work unachievable until today.

End-to-End No Knowledge Encryption

CrossClave encrypts everything using NSA CNSAS cryptography. Keys to ciphers are held only by endpoints with a need to know – never by the server or administrators. True cloud encryption is possible, and CrossClave may be configured to use a specified algorithm, or even interface with hardware-based encryption modules.

Cryptographic Compartments

CrossClave allows all users to create compartments that are cryptographically kept separate from all other compartments within CrossClave, allowing teams to create spaces that precisely reflect their security landscape.

Enforced Need-to-Know

CrossClave’s unique policy engine closes loopholes in authority and permission schemes. Simple coding can produce a series of facts and rules which govern all actions within CrossClave, which will reject all access requests or actions from those without a defined need to know or authority.

Irrefutable Logging

CrossClave is built on a distributed ledger that exactly reflects both the current and past states of the system. These logging capabilities mean that the state of the system can be reviewed, and access to data can be precisely defined for any time within the system’s history, giving nearly unprecedented insights during security reviews.

CrossClave Delivers a Full Productivity Suite

CrossClave Features

  • Unlimited Version Control

Centralized Team Management

  • Automatically retains every version of every file.
  • Need-to-know is assured through No Knowledge encryption and distributed ledger based policy.

Selective Sharing

  • Share files with your entire team, a select group, or an individual.
  • Team owners and administrators control team policy. Flexible policy engine gives the control your team needs.


  • Share, sync, and collaborate with teammates on different operating systems.
  • Windows, Mac, and Android currently available.
  • iOS and Linux available soon.

Hosted or On-Premise

  • SpiderOak CrossClave is available for both on-premise deployment or hosted as a service.
  • On premise available on AWS and Azure or hosted on your infrastructure.

Instant Notifications

  • Get a system or in-app notification for both chat actions or file changes across your spaces.
  • Push notifications coming soon.

Full Mobile Functionality

  • Download, view, and upload files from your mobile device for complete continuity.
  • Android currently available. iOS available soon.

Mobile apps have additional security features to ensure data remains confidential: pin unlock, fully encrypted data on disk, and emergency erase.

CrossClave vs. The Competition

The Industries only complete collaboration suite for ease of use and 100% Zero-Trust secure communication and collaboration


CrossClave vs Signal

CrossClave vs WhatsApp

CrossClave vs Wickr

Crossclave Pricing

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$0$7/month per user$15/month per user$30/month per user
Minimum Users1 user (up to 3 max)3 Users3 Users20 Users
Included Storage5 GB3 TB5 TB5 TB
Additional StorageUpgrade to Basic$10/mo per 1 TB$10/mo per 1 TB$10/mo per 1 TB
Support LevelCommunity ForumCommunity ForumTier 2Tier 3
Named Account ManagerNoNoNoYes
Admin TrainingNoNoYesYes
On Prem AvaliableNoNoNoYes
Get StartedBuy NowBuy NowContact Sales

Crossclave Support

    Community Forum

  • Available to CrossClave users on any plan
  • Moderated by support team members and community moderatorss and community moderators
  • Available 24/7

    Tier 1

  • Support via email (, forum, and support widget
  • Support hours are 9 am to 5 pm, US Central time, Monday to Friday
  • 8 hour SLA during support hours

    Tier 2

  • Default support tier for CrossClave Pro, optional upgrade for CrossClave Basic customers
  • Support via email (, forum, and support widget
  • Support hours are 9 am to 5 pm, US Central time, Monday to Friday
  • 4 hour SLA during support hours

    Tier 3

  • Default support tier for CrossClave Enterprise, optional upgrade for CrossClave Pro or Basic customers
  • Support via email (, forum, and support widget
  • Chat, phone, or video through your named account manager
  • Support hours are 24×7
  • 2 hour SLA

More on Secure Collaboration with CrossClave

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Next Steps

To learn more about CrossClave and all of SpiderOak’s secure communications, collaboration, back-up and storage products please contact us.

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