Fog computing involves processing at network edge before the data is moved to core network or centralized clouds. Especially with grow of billions of IoT devices, Fog computing processing at network edge has many advantages in the form of efficient data processing, ability to react the event quickly, reduction in networking bandwidth and reduction in storage size at cloud etc. The advantages come with a risk in terms of data security and information leakage. With computing at network edge, the breach on privacy of data generator is also a severe risk. These works studies the existing solutions for information protection in and secure information processing as well as load balancing at network edges of Fog computing network. The goal of this work is to identify the open areas in information protection and load balancing on Fog computing network.