Encryption is the cornerstone of online privacy. Discover how end-to-end encryption works, which algorithms truly protect your data, and why EchoPass uses XChaCha20-Poly1305 for your most sensitive messages.
20 articles
June 27, 2026
Digital security is an increasing concern in the age of instant communication. Whether you're an individual, an entrepreneur, or a professional dealing with sensitive information, it's crucial to…
June 23, 2026
Digital security relies on robust encryption algorithms, and XChaCha20-Poly1305 stands out among them. Understanding XChaCha20-Poly1305 encryption enables you to better protect your sensitive data, ensuring that only authorized…
June 18, 2026
In a world where digital security is paramount, knowing how to encrypt your documents online is essential for protecting your personal and professional information. This practical guide walks…
June 15, 2026
Managing your passwords on a secure hosting platform is crucial for safeguarding your sensitive data. In this article, we'll guide you through clear and practical steps to secure…
June 10, 2026
In an increasingly digital world, the question of securely transmitting your files after death has become crucial. How can you ensure that your important documents, digital memories, and…
June 4, 2026
In a constantly evolving digital world, choosing the right encryption system for your needs can seem complex. Whether you want to protect personal information, professional communications, or your…
May 25, 2026
In an increasingly digital world, personal data security has become a major concern. Client-side encryption is a crucial technology for safeguarding your sensitive information. But what does it…
May 18, 2026
Cryptography is a fundamental pillar of digital security, and Argon2id stands out as one of the most robust hashing algorithms to protect your data. In this article, we…
May 15, 2026
When you think about the privacy of your data, zero-knowledge architecture plays a crucial role. This approach ensures that even the service provider cannot access the information you…
May 13, 2026
A lost encryption key means permanently inaccessible data. A poorly protected key means illusory security. Storing cryptographic keys is one of the most difficult challenges in practical security.…
May 10, 2026
Why the Choice of Encryption Matters When you entrust sensitive messages to an online service, you place implicit trust in it: that it cannot read them. But that…
March 24, 2026
Some files deserve enhanced protection: scanned identity documents, contracts, medical records, wills, tax information. Individual file encryption adds a security layer independent of the storage service used. Here…
February 10, 2026
Every time you see a padlock in your browser's address bar and a URL starting with "https://," you're benefiting from the TLS protocol. It's one of the most…
January 27, 2026
Cloud computing has revolutionized how we store and share data. Google Drive, iCloud, Dropbox, OneDrive... these services are convenient, accessible anywhere, and affordable. But what are the real…
December 16, 2025
Email is the most widely used form of digital communication in the world, yet one of the least secure. By default, emails travel across the internet in plain…
November 29, 2025
Your digital data is vulnerable to three major threats: hardware failure, loss or theft, and cyberattacks (especially ransomware). An encrypted backup strategy protects against all these threats simultaneously.…
November 25, 2025
Imagine being able to prove you know the solution to a puzzle without ever revealing the solution itself. That's exactly what zero-knowledge proofs (ZKPs) allow. This fascinating cryptographic…
October 14, 2025
Not all encrypted messaging apps are created equal. Some promise privacy without truly delivering it. Others are excellent for instant messages but not for planned communications or digital…
October 7, 2025
When you create an account on a secure service, your password should never be stored in plain text. It should be transformed into a digital fingerprint (a "hash")…
September 19, 2025
The term "end-to-end encryption" keeps appearing in news about digital privacy. But what does it really mean? Do all services that advertise it actually implement it? And how…
Encryption protects your data by making it unreadable to anyone who doesn't hold the decryption key. From instant messaging to password managers, it has become essential for anyone concerned about their privacy online. Without encryption, your messages, files and credentials are potentially readable by your provider, host or an attacker intercepting network traffic.
EchoPass uses XChaCha20-Poly1305, one of the most resilient symmetric encryption algorithms available today, to encrypt your messages and attachments directly in your browser. The encryption key never leaves your device. Our servers only ever see encrypted data, ensuring absolute confidentiality even in the event of infrastructure compromise.
Symmetric, asymmetric, end-to-end, at-rest or in-transit encryption: each concept covers a different reality. Our articles demystify these notions with concrete examples to help you assess the actual level of protection offered by the services you use.