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Why do companies typically not give their employees root access to their desktop machines that are only used by a single employee?
If what I can do on my machine poses a threat to the rest of the network, isn't a security flaw in itself? Why would the rights I have on my own machine affect what I can do to others on the network?
Isn't the point of Unix user management to protect files of user A on machine X from access by user B on machine X?
If it's about protecting the user from himself (say, from installing something with root access that will wipe out the hard drive): Since I am working without root access, all my files are owned by myself; hence, if I am fooled and run an evil script without root access and it wipes all only the files owned by myself, it is just as bad as if I had given it root access and it wiped the entire hard drive.