No. [ What the hell does he know about space tech. He eyes this woman with an increased degree of skepticism. ] Shepard gave me encryptions made by someone she worked with.

[ Severus thumbs through the comms device and holds the screen out again. There are no names attached, but maybe she'll recognize the style. Tali's work was considered completely unhackable when it was still compatible with the system here. No such luck after the power outage. ]

There's little other way to establish if you are who you say you are, short of trotting out one of the telepaths.

[ .. And despite his own abilities, it's clear from his tone of voice that Severus is reluctant to make anyone go through that. Including potential space marine imposters. ]