I don't really understand why people bother with this security theater, all the self hosting is completely redundant.
2) SOC2 is defined by the American Institute of Certified Public Accountants. That it is held up as some sort of exemplary cyber security standard is absolutely ridiculous.
That's the whole point of SaaS isn't it? We pay you to manage this, you manage it appropriately taking advantage of economies of scale, we sue the shit outta you if it goes wrong.
Generally, you cannot.
Your identity is still stolen, your private photos leaked, your company destroyed, etc.
Pretty sure the entire point of SaaS is that sweet recurring revenue.
Doesn't matter if the downtime is higher, doesn't matter if there are more succesful attacks.
If a CTO goes in-house, they carry the risk. If they outsource it to a vendor, especially one with a Gartner report, they can play golf and not risk their bonus.