Consider a routing environment within a large, public sector security-conscious organisation; all traffic leaving its AS is encrypted using a variety of techniques including SSL, encrypted ZIP files and VPN end-points. There are two ISPS providing connectivity across the Internet and no private network links (such as dark fibre) are used. List and describe any routing weaknesses that could cause a loss of confidentiality [8 marks] Describe under what conditions encrypted traffic could be dropped by an ISP that is forwarding the encrypted traffic through its AS [8 marks]