Decrypting this comm has been been assigned to one of our hackers for gathering of potential information that could be found within. This way or another, we have succesfully accessed hidden message. As we already have long-standing "employment" elsewhere, entirety of "us" have to refuse your rather interesting invitation to your oganisation for several reasons. I believe what you were looking for is as follows:
It has been some time since our last conversation. The content of your message
is no suprise to us. We appreciate your "offer", but our business takes us
somewhere else. Nonetheless, we might be able to come to some other
sort of agreement.
Something that got...LOST and we have, might benefit from it.
Transmission established...
Source: [RHA]RHC-Valhalla, somewhere in Dresden system
Encryption ID: Ery2qJlSj0FMlsWMWyJflE+kn3naPuE8qzwyiy5TcOs=
Good day, hackers, this is Siegfried Draay transmitting. It was quite interesting to solve your puzzle, however, I'm not interested in secrets of corrupted libertonian goverment.
In case you have something interesting on Bundestag and its representatives, I'll stay on this frequency.