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Bringing Signal-Level Encryption to Collaborative Apps

June 21, 2026 Hannah Osei

Encrypting the Cloud

A team of developers, including Signal protocol co-creator Moxie Marlinspike, is building open-source software to enhance app security. The project, Encrypted Spaces, involves contributors from Microsoft and Harvard. Their goal is to provide „verifiable, encrypted, untrusted storage.” The initiative aims to improve collaborative apps like Slack and Google Docs.

The team is working to bring end-to-end encryption (E2EE) to various applications, making them more secure and private. Signal's E2EE is considered a gold standard for secure communication. By expanding this technology, the developers hope to protect user data in collaborative tools. This is particularly important as more people work remotely and rely on these apps.

Encrypted Spaces is designed to provide a secure way to store and share data in the cloud. The system ensures that data is encrypted on the client-side, making it unreadable to servers. This approach allows users to trust the system without having to trust the storage provider. By doing so, it minimizes the risk of data breaches.

Can Encryption be Scalable?

One of the challenges the team faces is scaling E2EE to large, collaborative applications. The developers are working to optimize the encryption process, making it efficient for multiple users. Their efforts could pave the way for widespread adoption of E2EE in various apps.

As Encrypted Spaces progresses, it could significantly enhance the security of collaborative tools. This, in turn, may lead to a shift towards more secure practices in the tech industry. The outcome could be a more private and secure online environment for users.

Frequently Asked Questions

What is Encrypted Spaces? Encrypted Spaces is an open-source project aiming to bring end-to-end encryption to collaborative apps. It involves a team of developers from various backgrounds.

How does Encrypted Spaces work? The system encrypts data on the client-side, ensuring it's unreadable to servers. This provides a secure way to store and share data in the cloud.

Will Encrypted Spaces be available for all apps? The project's goal is to make E2EE more widely available. However, its initial focus is on collaborative applications like Slack and Google Docs.

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