It used to be one of my biggest worries as well, since I've been running a hotel business for a while, and people's safety is an important aspect for me. It took me a while to find a reliable security system, and I had to check a lot of sources to find the best one. I managed to find https://customers.ajax.systems/czech-residentials, and you can check it out as well because it's possible to develop a customized security solution for your business, and I'm sure you won't regret choosing it.