Becker was born in Neuteich, Danzig (today Nowy Staw, Poland), to a German family.

In 1944, the SS needed more guards at the nearby Stutthof concentration camp, and Becker was called up for service.

[citation needed] After working in the camp for four months, Becker fled on 15 January 1945 and returned home to Neuteich.

The court had recommended that Becker's sentence be commuted to 15 years on the grounds that her actions had not been as severe as those of co-defendants Gerda Steinhoff or Jenny-Wanda Barkmann.

[1] No pardon was issued, and she was publicly hanged on 4 July 1946 at Biskupia Górka along with the ten other condemned SS supervisors and kapos.