in the suit , twitter received a summons from customs requesting records that could reveal the identity of the account ’s operator , including ip logs and any associated phone number or mailing address . the account describes itself as “ immigration resistance . twitter ( twtr , tech30 ) filed a federal lawsuit thursday against the u.s. government demanding that it reveal who is behind @alt_uscis . according to twitter ’s suit , filed today in northern california district court , us customs and border protection has attempted to use a “ limited - purpose investigatory tool ” to unmask the owner of the twitter account “ @alt_uscis . following trump has vowed to build a wall along the u.s. government agencies appeared to challenge the president ’s views on climate change and other issues . ” the account , one of several “ alt ” or “ rogue ” government accounts that appeared in the wake of trump ’s ascent to the presidency , was used “ to express public criticism of the department and the current administration , ” according to twitter argues in the suit that the request is a threat to free speech , which includes " a right to disseminate such anonymous or pseudonymous political speech . " the account , whose name stands for alternative u.s. a twitter has launched a lawsuit against the trump administration , after the department of homeland security sought to unmask an anonymous user of an anti - trump account . the trump administration is trying to force twitter to unmask at least one anti - trump account , according to a new lawsuit .