The Irish Times reported an Israel connection regarding a separate case involving him, the Block Scandal. As far as I am aware that case did not involve giving out state secrets to other governments. This article mentions Der Spiegel which reported the investigation on the possible Azerbaijan connection.
Azerbaijan doesn't give a rat's *** about German state secrets. :) It's either BS or they served as a proxy.
Azerbaijan is a former soviet republic. So them playing role of a proxy for Russia or stealing secrets to sell to Russians makes sense to me.