The 120 North LaSalle Street Building is manned with 24-hour security 365 days per year. Security card access and recording surveillance cameras monitor specific building areas.

The Buildings fire alarm system includes water flow alarm monitoring, a fire department communication system, an emergency/standby power system, stair unlocking system, exit signage and emergency lighting. All floors are fully sprinklered in accordance with Chicago Building Code. Emergency power is supplied by a diesel engine-driven generator and is provided for exit and emergency lighting, the fire command panel, sump pumps, fire pumps, the lobby security console and select elevators.