While most common uses for Intranet browsing, email and intranet access are permitted by your data plan, there are certain uses that cause extreme network capacity issues and interference with the network and are therefore prohibited. Examples of prohibited uses include, without limitation, the following:
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(v) any activity that adversely affects the ability of other people or systems to use either AT&T's wireless services or other parties' Internet-based resources, including "denial of service" (DoS) attacks against another network host or individual user;
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Accordingly, AT&T reserves the right to (i) deny, disconnect, modify and/or terminate Service, without notice, to anyone it believes is using the Service in any manner prohibited or whose usage adversely impacts its wireless network or service levels or hinders access to its wireless network, including without limitation, after a significant period of inactivity or after sessions of excessive usage and (ii) otherwise protect its wireless network from harm, compromised capacity or degradation in performance, which may impact legitimate data flows.