Despite its urgent and ever-growing importance, the cybersecurity industry is projecting a staffing shortage of 1.8 million unfilled jobs globally by 2022. Meanwhile, women represent just 11% of cybersecurity professionals worldwide. If chief information security officers (CISOs) hope to address their staff and skill shortage, they will need to actively recruit, retain, and promote women. In this report, we share best practices for security leaders to create a more welcoming culture for women in cybersecurity.