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British Embassy worker arrested in Germany for spying: What you need to know

David S, the British national, was arrested in Potsdam on suspicion of spying for Russia. He was being monitored by MI5. He worked at British Embassy in Berlin.
A statement from the German prosecutor said," on at least one occasion he forwarded documents obtained in the course of his professional activities to a representative of a Russian intelligence service. In return for providing information, the accused received cash in a previously unknown amount."
The arrest is the result of a joint investigation by German and British authorities and was not a 'snap arrest'.
The arrested man was a local hire at the embassy in Berlin and his access to high-level information would have therefore been limited but not inconsequential. He could still provide valuable intel to Russia: information on security protocols at the embassy, details of the internal Wi-Fi network, profiles of senior diplomats and their families and possibly even names of MI6 officers stationed in Berlin.