Running TSEC firmware's Stage 1 in a user controlled environment. Mostly useless, but may aid in side-channel attacks.
Scene developer @hexkyz recently updated the 'SwitchBrew Wiki', to document the 'TegraRCM' in full, and at the same time dropped a rather useless (but hilarious) 'unpatchable' bug. - That he found in the 'TSEC firmware' for v5.02 that not very useful but still its there:
OFFICIAL SITE: --> http://switchbrew.org/index.php?title=Switch_System_Flaws&curid=14&diff=4541&oldid=4515
NEWS SOURCE: @hexkyz (via) Twitter