4. INAPPROPRIATE MESSAGE SYSTEMS. You may not (i) post, transmit or use any commercial message ("spam") or chain letter in any of your communications or (ii) use any message routing or referral system to send messages on behalf of any other person or entity. Furthermore, you are prohibited from (iii) using fictitious quotes, fictitious persons, or any other misleading device to disguise the true nature or otherwise misrepresent the identity or origin of your message.
5. MISCELLANEOUS. Company reserves the right to discontinue any aspect of the Service at any time, and to block the use of this Service to any individual or entity. You agree to electronically back up your files, use a virus scan on your computer, and adhere to your network and security policies.