Below are excellent guidelines to ensuring good security checks and balances are present in the system

QUOTE: This diary isn’t about the particulars of this case, it’s much more of a common occurrence than you might think.  We’ll talk a bit about what to do, a bit about what NOT to do … First of all, my perspective …

1. Separation of duties is super-critical.
2. Hardening your infrastructure is also important. 
3. HR processes need to be integrated with IT.
4. Backups are important.