A. 1. The loss of local caching would dramatically increase ISP charges and impact existing bandwidth.
2. There would be a greater likelihood of Internet access outages due to lower resilience of cloud gateways.
3. There would be a loss of internal intellectual knowledge regarding proxy configurations and application data flows.

B. 1. The external vendor would have access to inbound and outbound gateway traffic.
2. The service would provide some level of protection for staff working from home.
3. Outages would be likely to occur for systems or applications with hard-coded proxy information.

C. 1. Outages would be likely to occur for systems or applications with hard-coded proxy information.
2. The service would provide some level of protection for staff members working from home.
3. Malware detection times would decrease due to third-party management of the service.

D. 1. There would be a loss of internal intellectual knowledge regarding proxy configurations and application data flows.
2. There would be a greater likelihood of Internet access outages due to lower resilience of cloud gateways.
3. There would be data sovereignty concerns due to changes required in routing and proxy PAC files.