The average CISO lasts approximately 17 months – and significantly less for those heads of information security at firms that have been breached. Its no coincidence, such is the volatility of the job market, that many CISOs have jumped from permanent to CISO-as-a-service opportunities. Even poor performing CISOs, dismissed from previous jobs, get handed new opportunities time and time again. If you do a good job, other opportunities are sure to follow, according to the Palo Alto Research Center.”]
Source: https://www.csoonline.com/article/3190953/how-cisos-find-their-perfect-job.html