session hacking

The session hijacking process normally involves five steps:

1. Sniffing the traffic between the target computer and the server.
2. Monitoring traffic with the goal of predicting the packet sequence numbers.
3. Desynchronizing the current session.
4. Predicting the session ID and taking over the session.
5. Injecting commands targeted at the server.

Discuss which of these steps is believed to represent the most difficult technical challenges and explain the methods or approaches one might employ to overcome the challenges.

200-250 words