Browsing the web through Tor can be slow. This is because user traf?c is forwarded between volunteer computers that are scattered across the world, overburdened with traf?c, and potentially situated behind slow network connections. Suppose that CloudCo, a large technology company with datacenters scattered across the world, offers some of its machines to the Tor community for use as entry and exit nodes. CloudCo machines have plentiful RAM and CPU; CloudCo machines also have low latency, high-bandwidth network connections to all major ISPs. By using CloudCo machines as Tor entry and exit nodes, users could ensure that Tor congestion would only exist in the middle of a circuit. Assume that CloudCo genuinely wants to help Tor users, and that CloudCo con?gures its machines to faithfully execute the Tor protocol. Why is it still a bad idea for users to employ CloudCo machines as entry and exit nodes?