Indeed, I once used an office computer for crypto affairs and often did because I was lazy to bring a laptop from home for work. I trade on office computers in various exchanges and I feel safe because my office computer is just me that uses it, and at the office only I deal with crypto. My friends don't know what crypto is all this time.
This kind of attitude is very dangerous, what are you going to do if one of the people that work with you finds out that you are dealing with cryptocurrencies, they could steal your password and then steal all your money and you will never know what happened, it is better that when you trade you only do it in computers that you know are completely safe and that no one has an easy access to them otherwise you are taking a huge risk since you are trusting that everything is going to be fine and one single mistake can be enough to lose your coins.