Tested backups and a clear, practised plan to bring the firm back, whether it's a deleted file, a dead server, or a bad day nobody saw coming.
Nobody plans for the server dying the week before a deadline. We make sure that when it does, the answer is “we've got this,” not a scramble and a sinking feeling.
Plenty of firms discover their backups don't work at the worst possible moment. We remove that risk by restoring regularly and keeping immutable copies attackers can't alter or encrypt.