Earlier quoted context omitted.
If you know your services are going to be used to commit a crime, then yes, that makes you an accessory and basically all jurisdictions (I know basically nothing about French criminal law) can prosecute you for that. Crime is, y'know, illegal.
I'm appalled that you would argue in good faith that a tool for communicating in secret can be reasonably described as a service used to commit a crime. Why aren't all gun manufacturers in jail then? They must know a percentage of their products are going to be used to commit crimes. A much larger percentage than those using Telegram to commit one.
The second amendment gives weapon makers some extra protection in the US, but they do have to be very careful about what they do and do not do in order to avoid going to jail.
> They must know a percentage of their products are going to be used to commit crimes. A much larger percentage than those using Telegram to commit one.
Do you have the stats on that? I don't, but I'm curious. While I don't doubt the vast majority of people using Telegram aren't committing a crime, I know that the vast majority of people using guns also aren't committing a crime.