1.             Permitted Purpose

 Except as otherwise agreed by LIFFE, those Persons authorized to use the Core Network in relation to the CBOT Electronic Exchange (“Users”) shall use the Core Network solely for purposes of participating in, accessing or obtaining information from the CBOT Electronic Exchange via an Interface with the Equipment.

 2.             Compliance with Laws

 Users shall use the Core Network in accordance with all applicable laws and regulations and any additional reasonable requirements as LIFFE may deem necessary to protect the Core Network. Without limiting the foregoing, Users shall not use, transmit, distribute or store via the Core Network any data, information or other material (“Data”) which (i) infringes or otherwise violates any copyright, trademark, trade secret or other intellectual property of any individual or entity; (ii) is pornographic, obscene, or exploitative of a minor; (iii) is menacing, malicious, illegally threatening or defamatory; or (iv) violates export laws or otherwise violates any applicable treaty, law or regulation.

 3.             Harmful Activities

 Users shall not use the Core Network to transmit, distribute or store any Data or undertake any other activities that may be harmful to or otherwise interfere with (i) the Core Network or the use thereof by any other User or other authorized user of the Core Network, or (ii) any system, network or equipment of LIFFE or any third party, including: (i) intercepting or attempting to intercept Data or other transmissions passing over the Core Network; (ii) forwarding chain letters; (iii) sending multiple e-mails or large transmissions that could reasonably be expected to annoy or harass or to impose a disproportionately large load on, or degrade the functionality of, the Core Network (e.g., “mail bombing”); (iv) sending any e-mail containing misleading or incorrect headers or information rendering the origin of the e-mail unclear or deceptive; (v) sending bulk or unsolicited e-mail messages (“spamming”), either directly or by relaying; or (vi) transmitting any virus, worm or Trojan Horse.

 4.             Security

 4.1          Users shall not violate or attempt to violate the security of the Core Network or interfere or attempt to interfere with LIFFE’s systems, networks, authentication measures, servers or equipment or with the use of or access to the Core Network by any other User or any other authorized user of the Core Network. Such prohibited activity includes (i) logging into a server where access is not authorized; (ii) probing, scanning, or testing the security or vulnerability of the Core Network or other networks; and (iii) attempting to gain access via the Core Network to any account or computer resource not belonging to such User (“spoofing”).

 4.2          Users shall not monitor Data or traffic on the Core Network except via a Trading Application or Interface.

 5.             Enforcement

 Except as may be agreed between LIFFE and the CBOT, LIFFE shall have no obligation to monitor or exercise control over any Data transmitted, distributed or stored by any User via the Core Network. Notwithstanding the foregoing, LIFFE reserves the right to monitor and control activities undertaken via the Core Network.

 6.             Responsibility

Each User is fully responsible for all uses of the Core Network undertaken (i) by such User or (ii) via such User’s Trading Application or Interface. (11/01/03)