The EU Council is pushing for encryption backdoors to messenger apps such as WhatsApp and Signal to fight terrorism (German article): https://fm4.orf.at/stories/3008930/
Despite the fact that errors of investigation in Austrian authorities had made the attack possible in the first place and not a lack of digital surveillance powers. Politicians must start to understand that more surveillance will not lead to more security. That's why we fight any attempt for an encryption backdoor: https://tutanota.com/blog/posts/why-a-backdoor-is-a-security-risk/
@matiaslavik @Tutanota There are various possible things, such as whether a state (upon approval by a judge) can try to hack into the system via some kind of malware, for instance. I imagine this differs from one jurisdiction to another. E.g. in Netherlands there is at the moment a high profile court case going, against a gang that basically offered murders and torture for hire (and then they went on killing witnesses, a lawyer, etc). A part of evidence are decrypted messages from their interactions.
https://nltimes.nl/2020/02/19/ridouan-taghi-linked-three-biker-gang-murders