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An open letter to students · 2026

Your privacy at high school is not a game

On your digital footprint, the control of your data, and the freedom to learn real technology.

Hello,

At high school, you spend many hours doing assignments, sending emails, and organizing tasks. Much of your academic and personal life happens through screens. But have you ever wondered who controls the digital footprint of everything you do?

Lately, the Department of Education and school administrations have been imposing corporate tools (like Microsoft 365) and centralized data management systems. They will tell you it is for convenience, but behind those decisions lie implications that directly affect your future.

The danger of mass tracking and privatization

Until now, a system called GestIB was used, which already carried the risk of centralizing too much information in a single place. In fact, in July 2024, GestIB suffered a serious hack that illegally exposed the data of thousands of students and families in the Balearic Islands [1.2.1]. The transition to the new system (Llull) does not fix this risk; instead, it worsens it by adding unnecessary links to the chain and further closing its source code, making it harder for anyone to audit it to find security flaws. Furthermore, since it is being programmed by an external company, these are data that a private company has access to right from the start.

Black boxes vs. Real technology

The mandatory use of closed ecosystems like Microsoft turns you into a mere passive user of a "black box". You are only taught to click the buttons they choose, while they extract your data to train their artificial intelligence systems.

If you are interested in computer science, programming, or technical development, you know that the real potential lies in open source and free software. That is what makes technology attractive:

What can you and your class do?

To go deeper and understand the issue

This technological shift hides a structural problem that affects us all. Several teachers have gathered the legal context, technical alternatives, and real cases that we rely on to demand change. You can read the full letter and join the network at:

saberlibre.net/LE/EN/Letter-to-teachers.html