Europas Satellitensicherheitsproblem hat einen Namen – Russlands Luch-2, und hier ist der Grund dafür

There is no difference to the satellite whether the data is encrypted or not, it will mirror it back. Using unencrypted data just saves bandwidth, so I doubt anyone in EU would actually send some critical information through the satellites unencrypted just to save bandwidth knowing they are spied on.

This article is at 9/10 on my bullshit meter, facts mixed with assumptions that russia is smart and Europe is dumb.