Authored by: Bryan Lachapelle, President & CEO
You ever hand out a key and forget who you gave it to?
That’s what it’s like giving contractors access to your systems. You need them to get started fast, but that often means shared passwords, one-off accounts, and a whole lot of cleanup nobody remembers to do later. That mess is a security hole wide enough to drive a forklift through.
But it doesn’t have to be this way.
There’s a tool called Microsoft Entra Conditional Access that can fix this in under an hour. You set it up once, and it handles the rest automatically. No more ghost accounts. No more "Did anyone disable Jim’s login from that HVAC project six months ago?" Just clean, reliable access that turns off when it should.
Why It Matters More Than You Think
This isn't just about staying organized. It’s about keeping your company safe and saving money down the line.
Here’s the thing: every time a contractor leaves and still has access, you’re rolling the dice. One forgotten login could let a hacker sneak in unnoticed. That’s exactly how the Target breach happened years ago. Someone got in through an old HVAC contractor account. Millions of customer records gone, and it started with access that never got shut off.
With Entra, you don’t have to remember to revoke access. You remove someone from a group, and their sign-in rights go with it. No loose ends. No back doors. That’s how you keep your name out of a headline and your auditor off your back.
Step 1: Make One Clean Group
Start simple. Go into your Microsoft Entra admin center and create a new security group. Call it something like “Contractors” or “Temporary Access.” Nothing fancy. Just a place to keep everyone in one spot.
When a contractor comes on board, add them to the group. When the job’s done, take them out. That’s it. From here, everything else builds off this one move.
Step 2: Set an Expiration Timer
Now here’s where the real magic happens.
You build a Conditional Access policy that watches this group. Set a rule that checks in every 90 days or whatever matches your contract cycle. Add multi-factor authentication too, so even if a password leaks, you’ve got a second layer of defense.
The moment someone gets removed from the group, they can’t log in anymore. Even if they try. Even if they’re still logged in somewhere. The door slams shut behind them.
Step 3: Keep Them in the Right Lane
Let’s say a contractor needs access to Microsoft Teams and a few SharePoint files. That’s all. You don’t want them poking around your financials or your HR system.
So set up another rule in Conditional Access. This one says: "You only get these apps, nothing more." Block everything else. Think of it like giving them a pass to one building, not the whole facility.
That’s called the principle of least privilege. It is one of the best ways to cut your risk in half without lifting a finger later.
Step 4: Make Sure They Prove Who They Are
You might not control what kind of laptop your contractor uses, but you can still set the ground rules. With Conditional Access, you can say, “Use our method to log in, or you’re not getting in at all.”
Use Microsoft Authenticator or another phishing-resistant method. That way, even if their gear’s a bit rough, their login is still tight.
Step 5: Watch It Work Without Touching It Again
Once you’ve got this system set up, it runs itself.
Add someone to the group and they get what they need. Take them out and every session shuts down. You’re not stuck remembering who to disable or chasing down expired accounts during an audit.
And that’s the real win. Less stress. More security. More time to focus on the stuff that actually moves your business forward.
Final Thought: Stop Firefighting and Start Fixing
If you’re like most folks we talk to in construction or manufacturing around Niagara, you’ve had enough of tech that makes your life harder. This setup with Entra does the opposite. It gives you control without complexity and security without babysitting.
Want help getting it dialed in? Reach out. We’ll walk you through it and build your own set-and-forget access system.
