A comparative legal analysis of major video conferencing platforms — Zoom, Microsoft Teams, Google Meet, Jitsi, and Proton Meet — from the standpoint of personal data protection, third-country transfers, and end-to-end encryption.
In the final months of 2025 and early 2026, two independent studies highlighted significant vulnerabilities in WhatsApp’s metadata management. The University of Vienna and SBA Research demonstrated the ability to enumerate 3.5 billion accounts through the contact discovery mechanism, while Tal Be’ery (Zengo) showed how cryptographic key IDs allow inference of operating system, device type, and approximate session age. Meta has begun implementing fixes, but the privacy implications remain significant. This article analyzes the nature of metadata, WhatsApp-specific risks, and presents open source alternatives based on federated protocols such as XMPP and Matrix.
Hush Line: The Open-Source Platform for Anonymous Whistleblowing October 2025: European Cybersecurity Month October 1 marked the start of European Cybersecurity Month, an annual awareness campaign that offers practical guidance to EU citizens on how to stay safe online. The campaign is coordinated by the European Union Agency for Cybersecurity (ENISA) and the European Commission, with support from EU member states and hundreds of partners across Europe and beyond. This year’s theme is particularly relevant: combating phishing and social engineering. Currently, 60% of cyberattacks start with phishing, an attempt to steal information or gain access to systems through deceptive messages or fraudulent websites. The campaign’s motto, “Cybersecurity is a Shared Responsibility,” emphasizes a fundamental concept: cybersecurity is a collective responsibility. ...
Web Key Directory: the technology that every email domain should adopt to ensure the authenticity and security of communications - TL;DR Why Encryption Is the Foundation of Digital Privacy Encryption is the technology that transforms readable information into incomprehensible code for anyone without the decryption key. It’s what protects banking transactions, government communications, and healthcare data. In the context of the European GDPR, strong encryption also enables the transfer of personal data outside the EU: when data is properly encrypted, individuals are no longer identifiable, simplifying regulatory compliance for international communications. Yet, paradoxically, the world’s most used communication technology – email – remains largely unencrypted, exposing billions of daily messages to potential interception. This article explores how the protocol Web Key Directory (WKD) finally solves this paradox, making email encryption simple and automatic: just as we now visit secure websites (HTTPS) without doing anything special, with WKD emails are also encrypted automatically without any user intervention. ...
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The intent to qualify «gatekeepers» and ensure their platforms are interoperable with other systems could undermine privacy.
Awareness of the confidentiality of correspondence and securing the content of messages through encryption