Hava joined the movement in 1943. In 1944 she was released from a forced labor camp and arrived in Budapest. Together with Mordehai Weisz she distributed Protection Documents, found locations for bunkers and was sent on various missions on behalf of the underground. Hava was liberated while staying in the “Glass House” and married Mordehai Weisz.
She made aliya in 1947. Hava worked with the Committee for Atomic Energy in Nahal Sorek and in the Israeli Embassy in Washington. She resides in Herzliya.