 At a second meeting, with trust established between two sides, Haushofer was known to tell Schulze-Boysen that an assassination attempt against Hitler was being planned.These two meetings created a level of trust between the two men that reduced their risk of exposure when trying to turn the Wehrmacht officer.In August 1941, after a weekend sailing on the Großer Wannsee, on Schulze-Boysen's boat, the "Duschika", Schulze-Boysen confided in Heilmann that he was working for the Russians as an agent.For almost a year, Heilmann supplied intelligence to Schulze-Boysen.