Cryptocurrency is a different type of asset than a stock when it comes to (technical) security problems and thus has a vastly different risk profile than a stock. If Microsoft has a security issue, it _may_ affect _some_ users, they are still generating revenue and likely have insurance to cover some of the worst possible situations. Courts provide ways to assist in the real life "undo" button. There is no (technical) security issue, I am aware of, Microsoft could encounter that would cause it to immediately fold without nearly fathomable levels of coordinated negligence or World War against Microsoft.

If cryptocurrencies have a security issue, the entire asset can be irreversibly destroyed with _nothing_ of value left over. Imagine a cryptocurrency called $41TC01N (ShitCoin) has a zero-day that allows any wallet to be trivially compromised, by the time people take action or even understand the nature of the issue-- the attacker could have emptied and exchanged nearly every wallet on the network. The ones left with funds would be worth nothing, because the value has been irreversibly transferred outta the asset. There was a cryptocurrency of some kind recently that is only in existence because the hacker graciously gave it back.

Like, I'm pretty sure, long-term decentralized currencies aren't going to end up as cool as people think they are... distributed ledgers might be, for archival purposes, but like... I ain't seen anything even mildly useful but crappy-DRM, err my bad, I mean NFTs be executed on the blockchain.