Why Your "Deleted" Messages Aren't Really Gone (And How I Fixed It)

📰 Medium · JavaScript

Learn how to build a secure, open-source messaging system with client-side cryptography and hard deletes, and why your 'deleted' messages may not be really gone

advanced Published 23 Apr 2026

Action Steps

Build a burn-after-reading vault using client-side cryptography
Implement hard deletes using Supabase
Configure end-to-end encryption for secure messaging
Test the system for security vulnerabilities
Apply the ZeroKey system to your own messaging application

Who Needs to Know This

Developers and cybersecurity experts can benefit from this article to understand the importance of secure messaging systems and how to implement them, while product managers can learn about the features and benefits of such systems

Key Insight

💡 Client-side cryptography and hard deletes are crucial for secure messaging systems, as they ensure that messages are truly deleted and not recoverable

Key Takeaways

Learn how to build a secure, open-source messaging system with client-side cryptography and hard deletes, and why your 'deleted' messages may not be really gone

Full Article

A deep dive into building ZeroKey: an open-source, burn-after-reading vault using client-side cryptography and Supabase hard deletes. Continue reading on Medium »

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