"Big brother, slow down, slow down, there's a precious treasure hidden here, but I can't sense any ambush or guards, there must be some trickery!"
No, there really isn't any trickery, because the security is all Li Pan, cough, I mean, arranged by generations of managers as per tradition.
After all, the Monster Company's warehouse is to be used for hundreds or thousands of years. If the security level is set too high, when the tax bureau comes for inspection, then damn, the inventory cost would be way too high.
Of course, they still have basic automated turrets, alert drones, and NCPA network connections, but such defense systems are meant to scare off petty thieves and protect against zero-cost acquisitions. They're already outdated and utterly useless against those Divine Sect Demon Gods who can walk through walls and fly like shadows.