Client-Side-ScanningChat Control is Pure Surveillance State

The planned chat control makes the world less secure and more authoritarian, as it is directed against private and encrypted communication. Proponents are using disinformation, lies, and sleight of hand to push through the project. But chat control can still be stopped. A commentary.

Surveillance Eye looking at a person writing a letter.
Every picture sent is checked by the state at home at the desk before it is put in the envelope. You have to imagine chat control with letters to understand how deep the invasion of privacy is. – Public Domain generated with Midjourney

For years, legions of IT experts and security researchers, lawyers, data protection experts, digital organizations, tech companies, messengers, UN representatives, child protection experts, guardians of internet standards, scientists, and anyone else with expertise have been raising alarms around the world: chat control is dangerous. It is a new form of mass surveillance. It will weaken the IT security of us all. It would introduce a surveillance infrastructure on apps and end devices beyond the EU that authoritarian states will use to their advantage.

Ultimately, chat control is a frontal attack on end-to-end encryption. Put simply, this form of encryption ensures that the sender puts their message in an envelope that can only be opened by the recipient. With the planned chat control, the envelope is not forcibly opened on the way to the recipient; instead, the contents of the envelope are analysed before being inserted into the envelope. So when you write a letter, your private data is looked at directly over your shoulder.

Nothing Is Private Anymore When Chat Control Arrives

Those in favour of chat control now claim that the envelope – in this case, end-to-end encryption – would not be opened and that communication would therefore be secure and encrypted. It’s a shabby and transparent sleight of hand: after all, what is the protective envelope worth if what we send to other people is screened by default before it is sent? And where is the good old privacy of correspondence for our digital letters on WhatsApp, Signal, or Threema? What right do you have to monitor what I do and what I send on my mobile phone, tablet, and computer? How dare you!

The fact is that it is not technically possible to monitor all content at the same time and still guarantee private and secure communication. It simply isn’t possible. But the EU Commissioner for Home Affairs, Ylva Johansson, and all the other proponents of chat control claim exactly the opposite. They openly lie to our faces, place misleading ads, and pretend that chat control is somehow harmless and compatible with fundamental rights and data protection. They spread the disinformation that private communication and the screening of all content can coexist. This is nothing less than an insult to common sense.

It’s Not About the Children

The surveillance proponents pretend that they want to better protect children and tell horror stories based on dubious figures. But it was clear from the outset that chat control is about attacking end-to-end encryption – and therefore the secure and private communication of billions of people. Because if the EU, with its 450 million inhabitants, introduces chat control, it will have a global impact.

From the very beginning, a lobby network intertwined with the security apparatus has been pushing chat control. It was never really about the children; otherwise, the root causes of abuse and violence would be addressed instead of monitoring innocent people without any initial suspicion. The point is that encrypted communication is a thorn in the side of the security apparatus. That is why it has been trying to combat our private and encrypted communication in various ways for years.

This is the surveillance state at its best and a reversal of the principles of the rule of law. Everyone is guilty until proven otherwise. This chat control is a spawn of authoritarian fantasies – and as such, the EU member states must reject it in the Council on Thursday if they still have a shred of democratic values.

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