Your office used to have an edge — a place where "inside the network" ended and "the rest of the world" began. A firewall, a locked door, a receptionist who knew who was supposed to be there. Remote work didn't remove that edge. It scattered it, one employee at a time, into living rooms, coffee shops, and home offices you've never seen. Nobody decided to lower the bar on security when the team went remote — it just quietly happened, one laptop at a time, unless someone specifically stopped it from happening. Here's what actually changes, and where to look first.
Your Employees' Home Networks Are Now Part of Your Business Network
When someone works from the office, their computer sits behind a firewall your business controls, on a network your business manages. When they work from home, that same computer sits behind whatever router their internet provider handed them years ago — the same router that also connects the kids' game console, a couple of streaming boxes, and a handful of smart-home gadgets nobody's ever logged into.
None of that is the employee's fault. It's just how home networks work — nobody expects their living room to double as a corporate perimeter. But that's effectively what happens the moment a company laptop joins that Wi-Fi. Whatever risk lives on that home network — an unpatched router, a weak password, a compromised smart device — now sits on the same network segment as a machine with access to your business's files and systems.
You can't lock down every employee's home router, and you shouldn't try. What you can do is make sure the company laptop doesn't trust the network it's sitting on — which is exactly what the next section is about.
Personal Devices Blur the Line Between Work and Everything Else
Remote work quietly erases the line between "the computer I use for work" and "the computer I use for everything." An employee checks email on a personal phone, opens a work file on a home laptop to finish something after dinner, or lets a spouse borrow the company laptop to print a boarding pass. Every one of those moments is small and completely understandable — and every one of them is a device your business now depends on that it never issued, configured, or has visibility into.
The risk isn't that your employees are careless. It's that a personal device wasn't built with your business in mind. It may not have antivirus software running. It may be shared with family members. It may already have unrelated apps or browser extensions installed that have nothing to do with work and everything to do with expanding what could go wrong.
"Nobody decided to lower the bar when the team went remote — it just happened, one laptop at a time, unless someone stopped it."
Ask a simple question: "Is work getting done on devices we didn't provide and can't manage?" If the honest answer is yes, that's not a reason to panic — it's a reason to set a clear, written policy about what's allowed on personal devices and what isn't.
A VPN Only Helps If It's Actually Used — and Set Up Correctly
A VPN is supposed to be the tunnel that makes a home network irrelevant — it wraps the connection back to your business in encryption so it doesn't matter what router it started on. That's the theory. In practice, a VPN only protects what travels through it, and only while it's turned on.
Two things quietly break this. First, a VPN that isn't required — one that employees can just skip when it's inconvenient — gets skipped. Second, a "split tunnel" VPN configuration, common because it's more convenient and uses less bandwidth, only routes traffic to business systems through the encrypted tunnel and lets everything else go straight out over the home network unprotected. That might be a reasonable tradeoff for some businesses. It's a serious gap for others. The point isn't that split tunneling is wrong — it's that most business owners don't know which one they have.
Ask: "Do we have a VPN, is it required rather than optional, and do we know whether it's full-tunnel or split-tunnel?" If nobody can answer that with confidence, it's worth a fifteen-minute conversation with whoever manages your network.
Public Wi-Fi Habits Don't Disappear Just Because Everyone Knows Better
Everyone has heard the warning about coffee shop Wi-Fi. Almost nobody changes their behavior because of it. Remote work means employees are no longer tied to one desk — they work from airports, hotels, client sites, and yes, coffee shops, all on networks your business has zero control over and zero visibility into.
The practical fix isn't a lecture about public Wi-Fi being dangerous — everyone's heard that one and everyone still does it anyway. The practical fix is removing the decision entirely: a VPN that's required rather than optional, and multi-factor authentication (MFA) on every account that matters, so that even if a password gets intercepted on a bad network, it isn't enough on its own to get in.
Ask: "If someone logged into company email from an open Wi-Fi network right now, is there a second layer of protection in place, or is a password all that's standing between them and the account?"
Offboarding Gets Harder When Work Never Physically Left the Building
When someone left the office for good, offboarding used to include something simple and effective: they handed back the laptop and their key card stopped working. Remote work removes that physical checkpoint. A former employee's home laptop may still have saved logins, cached files, or an active VPN connection long after their last day, unless someone specifically goes and revokes it.
This is one of the most commonly missed steps in a remote setup, because it doesn't cause a problem immediately — it just sits there as unfinished business until it does. Access that isn't formally shut off doesn't announce itself as a risk. It just remains open.
Ask: "When someone leaves, is there a checklist for cutting off every account, VPN connection, and shared file they had access to — and does someone actually own running through it?"
What to Do If Any of This Sounds Familiar
Remote work isn't a security problem to be solved once and forgotten — it's an ongoing shift in where your business's edge actually sits. None of the fixes here require ripping anything out and starting over. They require a short, honest checklist and someone willing to own it.
- Confirm whether a VPN is required or optional, and whether it's full-tunnel or split-tunnel
- Turn on multi-factor authentication (MFA) for email and any system that matters
- Write a plain policy on what is and isn't allowed on personal devices
- Build (or dust off) an offboarding checklist that revokes every account and connection
- Make sure company laptops run endpoint protection regardless of what network they're on
At Brewed Security, we help businesses across Cincinnati, Dayton, and Northern Kentucky set up remote work the right way — VPN, MFA, device policy, and offboarding included — in plain English, without turning it into a six-month project.
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