The Security Behind Screen Sharing
Screen sharing is generally quite secure from those who want to intercept your sessions—unless you're using VNC.
Two computers running Leopard use a smart and secure method to confirm each machine's identity to each another. Once confirmed, strong encryption is used to scramble the screen's data and the remote computer's interaction. This is true whether you're using iChat, Bonjour, an IP address, or a host name to connect two computers. Back to My Mac layers even more encryption on top of that.
VNC has some encryption and security built in, but it's not very strong. A dedicated cracker—a black-hat hacker who tries to crack systems—could break the encryption and have access to your remotely controlled systems and ...
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