Company security tips

The company is a small company, struggling to survive, and has not considered many security measures.
One night, thieves broke into the door, split all the chassis, captured all the memory and CPU. Of course, my colleagues are very happy to have a day off without having to work. I am afraid to think about it. If it weren't for the benefit of the chassis and hard disk designers, the hard disk would be hard to unload and not worth the money. If all the hard disks were taken away by thieves ......
Software companies should have a minimum awareness of data security backup, because the data is the true core of the company. Without them, the company will be finished. Thank God this time. It won't be so lucky next time.
Backing up data ......