The use of unified communication; video conferencing, audio and instant messaging has skyrocketed during the COVID-19 pandemic. However, security privacy considerations have often been neglected. This article provides a comprehensive survey in Unified Communication (UC). We systematically analyze threats mitigations generic UC scenario. Based on this, we features major market leaders, draw conc...

There is need for a scheme to ensure the security and privacy of the administrator and users. Providing security is different to providing privacy, because their goals differ. Security is based on organization goals, but privacy is based on user goals. Providing security and privacy must be according to organization constraints. The most important constraints in any organization are economic is...