I'm not dev so it's hard to know, good that you can confirm. Now the question is how companies can prove to their users that they did correctly and can be trustful.
Discussion
Why do you think financial industry is regulated? 🤣
You cannot trust any company to be truthful, unless they have an axe hanging over them and they had an independent review of their systems. Legal liabilities tend to make people less reckless with other people’s money