There is a lot of concern about having cameras installed everywhere and governments or big companies using them to track us - invasion of privacy, tracking, release of personal details, blackmail, etc. But there are ways of implementing cameras for specific tasks that avoid these problems. I will talk about what these are, how they work and what their limitations are.
I’ve been an embedded developer for 20 years. I haven’t bothered learning web development because I still think the internet is a passing fad, but I’ve been forced to think about security after we added networking to our products.