How to determine if there is a stealth proxy server recording my computer?

Sorry for rough question, I'm not an engineeer. My company just bought me an Apple computer. I've heard of privacy leaks and computer data stealers such as proxy server, etc. I know firewall proxy server can record all your internet data coming out of computers. I was wondering if there are any stats to find out proxies in terminal even if they have been hidden by design or implementation. I tried ifconfig in my computer. here are some proxies among them. lo0 gif0 anpi1 en2 bridge0 ap1 vmenet0 Are these an indicator of potential security or privacy compromises?