After raising $270M at a $1.7B valuation, Exein Co-Founder and CTO @giovannialb_ explains the core thesis behind the company: "We started with this idea that nobody was looking at the very simple things ... like a light bulb." "Because they were thinking, 'You know, it's not a security problem. I don't care if someone hacks my light bulb. Who cares?'" "The point is, it's not the light bulb per se, it's the environment in which it is deployed." "It becomes an entry door for escalating across…