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Why R|G?
•Problems:
–Any OS will always be exploitable
•The richer the OS, the more bugs
–Need internet access to get work done, have fun
•The internet is full of bad guys
•Solution: Isolated work environments:
–Green: important assets, only talk to good guys
•Don’t tickle the bugs, by restricting inputs
–Red: less important assets, talk to anybody
•Blow away broken systems
•Good guys: more trustworthy / accountable
–Bad guys: less trustworthy or less accountable
•