Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.
C:\Program Files\MySQL\MySQL Server 8.0\bin> mysql -u myusername -p;
mysql: [Warning] Using a password on the command line interface can be insecure. ERROR 1045 (28000): Access denied for user 'myusername'@'localhost' (using password: YES)