It's pretty standard in all user agreements:

"Customer and each User agree that We or our agents have, to the maximum extent permitted by law, the right (but not the obligation) to monitor postings, content and communications electronically from time to time made through the Service using Customer's account or connection, including e-mail, newsgroups, chat boards and Webspace content and communications, and to disclose any information as necessary or we reasonably believe to be prudent to satisfy any law, regulation or other governmental request, to operate the Service or to protect Mediacom or its affiliates, suppliers or subscribers. We reserve the right to refuse to permit Customer or any User to post, transmit, receive or store, and also reserve the right to remove, any content, message or material that We deem unacceptable, undesirable, offensive or in violation of this Agreement, law or third-party rights."

https://mediacomcable.com/HSD_Subscriber_Agreement.pdf