> I always wonder what their conrete worry or attack scenario is
There are laws in place who require German institutions to keep data privacy to a certain standard. This standard cannot be guarantueed when using e.g. Whatsapp.
Of course one could argue the Germans are too paranoid when it comes to privacy – but keep in mind where this comes from: Germany knows first hand what impact state lead data collection can have from it's own history on not one but two occasions (the Nazi-apparatus and the Eastern German STASI surveillance).
This historic backdrop lead to a widespread mindset that one should collect as little data as necessary (search for privacy by design or Datensparsamkeit). This mindset is also enshrined in law.
If you work in an government entity IT-department who is responsible for complying to these laws recommending a messenger which does "something" to your users data (where this "something" can change at any point), is something you could do, but on the other hand you could also just tell them not to use it at all (or to use Signal etc).
There are laws in place who require German institutions to keep data privacy to a certain standard. This standard cannot be guarantueed when using e.g. Whatsapp.
Of course one could argue the Germans are too paranoid when it comes to privacy – but keep in mind where this comes from: Germany knows first hand what impact state lead data collection can have from it's own history on not one but two occasions (the Nazi-apparatus and the Eastern German STASI surveillance).
This historic backdrop lead to a widespread mindset that one should collect as little data as necessary (search for privacy by design or Datensparsamkeit). This mindset is also enshrined in law.
If you work in an government entity IT-department who is responsible for complying to these laws recommending a messenger which does "something" to your users data (where this "something" can change at any point), is something you could do, but on the other hand you could also just tell them not to use it at all (or to use Signal etc).