In an era where conditions for education are rapidly changing globally, online assessment presents several opportunities as well as challenges in the higher education landscape. The forceful transition from face-to-face to online assessments, as part of the emergency implementation of online learning due to the COVID-19 pandemic, has affected teaching, learning, and assessment experiences worldwide. This study explores how faculty members in Saudi universities secured their online assessment during phase one of the COVID-19 pandemic. The research aims were: (1) identifying faculty assessment practices before the onset of COVID-19 and comparing these with practices during the pandemic, and (2) identifying the major challenges faced by the faculty members of the study in securing their online assessment to ensure that academic integrity and assessment standards remained intact. Data were collected from seven university professors through a self-reporting survey, followed by semi-structured interviews. The faculty members found the pandemic period to be the best time to change their assessment methods, and incorporate innovative ideas that conformed to both their own beliefs and students' needs. The factors that influenced the faculty's assessment alterations were their personal beliefs and learnings from others' experiences, in addition to the guidelines issued by Saudi Arabia's Ministry of Education. The results of this study have implications for the development of post-COVID-19 assessment practices and professional development priorities.