The paper at hand presents the design of a survey aiming at the cyber-security culture assessment of critical infrastructures during the COVID-19 crisis, when living reality was heavily disturbed and working conditions fundamentally affected . The survey is rooted in a security culture framework layered into two levels, organizational and individual, further analyzed into 10 different security dimensions consisted of 52 domains . An in-depth questionnaire building analysis is presented focusing on the aims, goals, and expected results . It concludes with the survey implementation approach while underlining the framework's first application and its revealing insights during a global crisis.