During the recent Coronavirus (Covid-19) pandemic the traditional education system almost halted throughout the world. However, in order to continue with the education without wasting students time most of the countries transferred their teaching online. Although the online teaching is widely used but there are many challenges and security issues specially when the education is disseminated using education cloud. In this article we examine and review such challenges and security issues that may impact students and teachers in various educational institutions in Saudi Arabia. A review of hybrid cloud model is presented in order to benefit across institutions. The research also articulates different ways which can be adopted by educational institutions to provide smooth online teaching due to pandemic of covid-19. We also present some solutions that may help overcome challenges and secure a robust cloud infrastructure.