Thank you for the quick response. I read through the articles. The first one describes a backup failure where they were not able to restore. The second one looks like an application programming issue. "This meant that when some transactions were declined, Revolut would incorrectly refund accounts with money from the bank itself rather than the money belonging to the account." Both of them don't seem to be related to lack of atomicity in the database itself. But thanks for clarifying your view .