Final answer:
The IT security team should consider application containerization to isolate applications and maintain performance. Other options include application sandboxes, patch management, and application whitelisting to enhance security.
Step-by-step explanation:
To mitigate the risks of malware infections and unauthorized access to sensitive data in a medium-sized organization, the IT security team should consider implementing application containerization. Containerization involves encapsulating an application and its dependencies into a container with its own isolated environment. This method isolates applications from the rest of the system, reducing the risk of threats spreading without affecting the overall performance and usability of the applications. Containers are a more lightweight solution compared to virtual machines, as they share the host system's kernel but maintain separation between applications. This ensures optimal performance and usability.
Another option is to use application sandboxes, which provide a controlled environment where applications can run without affecting the broader system. Sandboxes are useful for isolating untrusted programs and preventing system-wide infection or data breaches.
Moreover, ensuring rigorous patch management and application whitelisting can bolster defense by allowing only approved applications to run and maintaining current security updates.