How did some people survive the holocaust

Going into hide outs like Anne she went to an annex

They had access to the storerooms, where everything from uniforms to ammunition was kept. One morning, Piechowski loosened a bolt on a trapdoor into the storerooms' coal cellars. It was June 20, 1942, a Saturday-there were fewer Germans around on the weekend. The four plotters gathered containers of kitchen waste and told a guard that they were tasked with taking the waste away. The guard waved them out of the main camp.