No unauthorized attempts to gain root access or access to any account not belonging to you on this or any other EFF system. No use of this or any other EFF system as a staging ground to crack other systems. No use of this or any other EFF system through unauthorized dial-up access. No use of this or any other EFF system for illegal or criminal purposes.
All users are responsible for their own telecom access charges, if any.
Any user who finds a possible security hole on any EFF system is obliged to report it to the system administrators. If you're not sure, report it, don't try to use it. Users are responsible for all use of their accounts, including choosing safe passwords and ensuring file protections are set correctly. Sharing passwords is not permitted. Please keep in mind that many people use the EFF systems for day to day work.