1. A method of mediating a co-editing session for a document, the method comprising: establishing, by one or more processors, a co-editing session for a first user and a second user to co-edit a document; receiving, by one or more processors, a first modification of the document from the first user; transmitting, by one or more processors, a second modification of the document from the second user to the first user; and in response to a quantity of subsequent modifications, after the first and second modifications, exceeding a predetermined value, initiating, by one or more processors, an action to prevent further modifications to the document.