Comment by bongodongobob

Companies get hacked because Bob in finance doesn't have MFA and got a phishing email. In my experience working for MSP's it's always been phishing and social engineering. I have never seen a company comprised from some obscure bug in software. This may be different for super large organizations that are international targets, but for the average person or business, you're better off spending time just MFAing everything you can and using common sense.