There’s a secret hidden in almost every digital image and the website you’ve seen. That is Lena, Miss November 1972, or Tech’s Original Sin. In the 70s, guys at the University of Southern California used Lena’s centrefold to test their image-processing algorithms. This research laid the groundwork for the JPEG. Today, with complete indifference to women, Lena remains the most-used test image. Losing Lena campaigns for the removal of the Lena image to create a more equitable future for women in tech.