How to get access control right
It comes up on almost every project, usually later than it should. The short answer to access control is that it is mostly a sequence of small decisions, not one big one.
Security is a maintenance habit rather than a purchase, which is why it drifts. Most teams find the first pass takes an afternoon and the maintenance takes minutes a month.
What is actually at stake
Give the least access that lets someone do their job. Getting it slightly wrong is survivable. Ignoring it entirely is not. The version that survives contact with a real deadline is the simple one.
The steps
- Establish what you have today before changing anything
- Review who has access when people change roles
- Shared logins destroy accountability
- Write down the decision so the next person does not re-litigate it
Shared logins destroy accountability. Where this goes wrong is almost never a lack of knowledge. Most teams find the first pass takes an afternoon and the maintenance takes minutes a month.
Making it stick
The short version
The realistic threat for most small businesses is automated and opportunistic, not targeted. Three things worth confirming about access control before you move on:
- Someone can say what the current setup is without going to look
- Review who has access when people change roles — and you know whether that is true here
- There is a way to tell whether the last change to this helped
Pick the one that would hurt most if it failed, and start there.