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Secure self-hosted team chat platform Chatto goes open source

📅 9 July 2026 at 11:18 UTC📰 Cyber InsiderView original source ↗
Secure self-hosted team chat platform Chatto goes open source

German developer Hendrik Mans has released the source code for Chatto, a privacy-focused team messaging platform, making the project open source and available for anyone to self-host. The milestone fulfills a promise made when the project was first unveiled in late 2025 and opens the software to public scrutiny for the first time. The project … The post Secure self-hosted team chat platform Chatto goes open source appeared first on CyberInsider.

🤖 AI BriefingAuto-generated threat analysis
🔍Threat Overview

Chatto, a privacy-focused team messaging platform, has been released as open source, allowing for public scrutiny and potentially exposing vulnerabilities in its implementation. This move may increase the risk of exploitation by threat actors targeting self-hosted deployments.

⚙️Technical Details
💥Impact Assessment
Severity: medium
Who Is at Risk
organizations using Chatto for self-hosted deployments, particularly those with sensitive data or high security requirements
🛡️Recommended Actions
1Monitor Chatto's development and updates for potential vulnerabilities
2Evaluate the impact of Chatto's open-source release on their own deployment
3Consider migrating to a managed hosting service like Chatto Cloud for added security
📦Affected Products
Product Name: ChattoOperating Systems:LinuxmacOSWindows

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