I disagree a bit on this. Looking at previous data breaches, when something like an s3 bucket gets hacked, the news is not going to be about on how Amazon is responsible for company X's data breach but on how company X's servers got hacked. Stripe, like AWS, is the infrastructure, the onus is on a company to ensure their infrastructure security as it can be an existential risk. A philosophy of Stripe's is that that they succeed when their customers succeed, I'd like to think that they have a shared interest in try to prevent their customers being breached as much as possible.