What only one thing depends on.
WHAT TO LOOK FOR
Something only one person can do Something only one person has access to Something stored in only one place A supplier with no alternative An account tied to one email address
THE ONE PERSON PROBLEM
If only you can access the bank, the domain, or the customer records, your absence stops the business.
THE ONE EMAIL PROBLEM
Accounts tied to an address on your own domain.
If the domain fails, so does your ability to recover the accounts that would fix it.
THAT IS A COMMON AND SERIOUS TRAP
THE ONE DEVICE PROBLEM
Records, contacts and authentication apps on a single phone.
Losing it loses all of them.
THE ONE SUPPLIER PROBLEM
A single source for something essential.
HOW TO FIND THEM
Walk through a normal week and ask what would stop each task.
WHAT TO DO ABOUT EACH
Add redundancy, or accept the risk deliberately.
WHAT NOT TO DO
Discover them during the failure.
