It is said that "Artificial Intelligence $($AI$)$ and Machine Learning $($ML$)$ play a crucial role in the evolution in the overall operating systems of MNCs by providing them insights to improve their product and service offerings".

Discuss the above statement by explaining the impact of AI and ML on the following aspects related to MNCs: $($Minimum $300$ words$)$

Communication;

Efficiency;

Data management;

Market reach;

Cyber$-$security risks.