Key Takeaways

• Contractor and third-party access has become one of the largest sources of enterprise breach risk, with third parties now involved in nearly half of all breaches.
• VPNs and VDI were built to extend the corporate network to trusted, managed employees, so they give contractors "all or nothing" access that no longer matches how contract work happens.
• The browser is where most contractor work now happens, which makes it the natural place to enforce least privilege, data controls, and session visibility for contractor access.
• Enforcing contractor access at the browser layer closes the gap between who can log in and what they can do once inside, without shipping laptops or managing a contractor's personal device.

Contractor work happens in the browser, but most controls don't

A contractor starts on Monday for a six-week engagement, and they need two internal applications to do the job. They're working from their own laptop, a device the organization doesn't own and can't image. So the request lands on IT's desk: how do we get this person into exactly those two apps, quickly, without handing over more than they need? This is the contractor access problem in miniature, and most teams discover their options weren't built for the question.

Here's the mismatch. Contractor work now runs almost entirely through SaaS and web applications, inside a browser. But the controls meant to govern that work still sit a layer or two away, at the network (the VPN) or on the device itself. Gartner has observed that web browsers are the primary access method for most modern corporate applications. The work moved to the browser, but the controls mostly stayed where they were.

That gap is showing up in the breach data. In the 2026 Verizon Data Breach Investigations Report, third parties were involved in 48% of breaches, up from 30% in the prior year's report. Contractors and vendors aren't the villains in that story. They're simply the access path that has grown fastest while the controls around it stayed still. The tools guarding that path aren't bad; they're just standing at the wrong door.

None of this is the contractor's fault, and it isn't really IT's either. The access model everyone inherited assumes the person connecting is an employee on a managed machine. A contractor breaks that assumption on day one, arriving with their own device, a short timeline, and a narrow set of things they actually need to touch. Multiply that by the vendors, agencies, and business process outsourcers a modern enterprise relies on, and the exceptions start to outnumber the rule. The honest question was never "can we let them in." It's "once they're in, what can they reach, and how would we know."

Why VPNs and VDI give contractors "all or nothing" access

Ask anyone who has provisioned contractor access and you'll hear the same tradeoff. Grant a VPN connection and the contractor gets broad reach into the network, most of which they will never use. Stand up a virtual desktop instead and the cost and setup time pile up for an engagement measured in weeks. Neither option feels right, because neither was designed for this.

It helps to remember why these tools exist. VPNs and VDI solved a genuine problem: extending the trusted corporate network to employees working on managed devices, often from home or on the road. For that job, in that era, they were the right answer. The browser wasn't where policy could live yet, so access had to be governed at the network and the device. That was sound architecture for the world it was built in.

What has changed is where the work sits. A VPN authenticates a connection and then grants network reach; it was never meant to answer a more specific question, which is what a given contractor can actually do once they're inside an application. Once the tunnel is up, the contractor can often see far more of the network than the engagement ever called for, and the VPN has no opinion about that. VDI can scope things more tightly, but standing up and licensing a virtual desktop for a six-week engagement carries real overhead, and someone still has to tear it down afterward. That isn't a security architecture so much as a legacy deployment pattern with an expensive habit.

Identity closed much of the front-door problem. Strong authentication and single sign-on answer "who is this person" well. What sits unaddressed at the network and device layer is the next question: what can this person touch once the door opens, and for how long. That space, between who can log in and what they can do inside, is where contractor risk actually lives. It's why so many organizations evaluating zero trust network access describe their motivation the same way. They aren't chasing a trend. They're trying to replace all-or-nothing reach with access scoped to the task.

Move contractor access controls to the browser, where the work happens

If the work happens in the browser, then the browser is where the answer can live too. That's the reframe. Instead of governing the network a contractor connects through, or the device they carry, you govern the place where they actually touch the application. Least privilege, data controls, and visibility can all be enforced at that layer directly, rather than approximated from a distance.

There's a hierarchy worth understanding here, and it's about architecture, not brands. At one end, network and proxy-based approaches sit outside the browser entirely; they can route and inspect traffic, but they can't see what happens inside a web application. In the middle, an extension can add useful controls to a consumer browser, and many organizations run extensions alongside other tooling to good effect. At the far end, an enterprise browser builds the controls into the browser itself, so policy lives in the same place as the work. Each approach earns its place. They simply see different amounts of what a contractor is doing.

Enforced at the browser layer, contractor access can do things the network layer can only guess at:

• Conditional access that weighs identity, device posture, location, and the specific application before granting entry.
• Application boundaries so a contractor reaches only the apps in scope, and nothing sitting behind them on the network.
• Last-mile controls over copy, paste, download, print, and screenshot, so sensitive data stays inside the app.
• Full session visibility and audit, giving security teams a record of what happened without watching over anyone's shoulder.
• Access on unmanaged and BYOD devices, without imaging hardware or shipping a laptop.

This is the idea behind the Island Enterprise Browser. Rather than adding contractor controls onto a consumer browser after the fact, Island builds them into the browser itself, so conditional access, data protection, and session visibility become properties of the environment rather than add-ons. It's the difference between security that's built in, not bolted on, and security that's layered on top and hoping to hold. The practical payoff shows up in onboarding: because access becomes a matter of logging into the browser rather than provisioning a tunnel or a desktop, Island reports contractor onboarding dropping from 45 days to 45 minutes.

The broader market is moving this way too. Gartner predicts 25% of organizations will deploy a secure enterprise browser by 2028, up from less than 10% today, and frames these browsers as a way to reduce reliance on VPNs and VDI. None of this replaces identity or the network stack overnight. It shifts the question of what a contractor can do from a distant control point to the one place that can actually see the work, which is the direction of travel the numbers are pointing toward.

Give contractors access to the apps they need, not the network behind them

"Least privilege" is easy to say and harder to grant when the subject is a contractor. For an employee, you can lean on role, tenure, and a managed device. A contractor arrives with none of that context and a clock already running, so the instinct is to give them a network path and sort out the details later. The details rarely get sorted.

For contractors, least privilege really means application-scoped access rather than a network tunnel. The contractor sees the two applications the engagement requires and nothing else, not because a firewall rule is blocking the rest, but because the rest was never in scope to begin with. It's a smaller surface by design. An access model anchored at the browser can answer questions a network tunnel simply can't:

• Which specific applications this contractor may reach.
• What device posture is required before access is granted.
• Which locations or networks the access is allowed from.
• What data movement is permitted once inside, such as download or copy.
• How long the access lasts before it expires on its own.

That last point deserves attention, because it's where contractor programs tend to quietly break. Access granted for an engagement can be set to expire with it, so offboarding becomes something the system does rather than something a person has to remember. Time-bound access won't solve every offboarding problem, but it removes the most common one.

Picture the six-week contractor from earlier. They reach exactly two applications, they can't download the customer database, and when the contract closes their access closes with it. No ticket, no cleanup project, no lingering account waiting to be found in next year's audit. The scope shrinks the blast radius if that contractor's credentials are ever phished or reused, because a stolen login only reaches what the engagement allowed in the first place. Here's the part most access reviews miss. The contractor account that eventually hurts you usually isn't the one you fought over. It's the one nobody remembered to turn off, which is why designing for automatic expiry beats relying on memory as a security control.

What to look for when you evaluate a contractor access approach

By the time most teams sit down to evaluate contractor access approaches, they've usually accumulated a few. A VPN for some vendors, a VDI pool for others, and a handful of exceptions nobody wants to explain in an audit. The goal isn't another point tool. It's a way to judge whether an approach actually fits how contractors work. A short list of questions separates the approaches that hold up from the ones that look good in a demo:

• Does it work on unmanaged and BYOD devices, without an agent or a shipped laptop?
• Does it enforce controls inside the application itself, and not just at the connection?
• Does it give you session-level visibility and audit that a compliance team can actually use?
• Does it let you scale access up and down without a ticket backlog forming behind it?
• Does it deliver an experience contractors won't be tempted to route around?

That last question is the one evaluations underweight. The best contractor access control is the one your contractors won't bother working around. If the secure path is slower than the shortcut, adoption fails quietly, and you tend to find out during the incident review. Ask vendors for deployment-friction and adoption data, not just a feature matrix.

There's a compliance dividend here too. Session-level visibility and genuine least privilege map cleanly onto third-party risk management and audit requirements, which means the same architecture that speeds up onboarding also produces the evidence auditors ask for. Instead of reconstructing who touched what from a patchwork of network logs and access tickets, the record already exists in one place. One approach, two problems solved.

The stakes are worth stating plainly. IBM's 2025 Cost of a Data Breach report puts the global average breach at $4.44 million, and the U.S. average at $10.22 million. Not every breach traces back to contractor access, but enough of them do to make the architecture of that access worth getting right.

Your contractor access problem has a layer you haven't tried

Most contractor access complexity is inherited, not chosen, and the browser is the layer most teams haven't tried yet. If you're rethinking how contractors get access, we're happy to walk through what we've built. Request a demo.

FAQs

How do you secure remote access for contractors?

Grant application-scoped, least-privilege access enforced where contractors work, in the browser, with strong authentication, data-movement controls, and session visibility, rather than opening the whole network through a VPN.

Why is a VPN risky for contractor access?

A VPN authenticates the connection and then grants broad network reach, so it can't limit what a contractor does once inside. It was built to extend the network to trusted employees, not to scope third-party access.

How do you give contractors access without full network access?

Scope access to the specific apps an engagement requires and enforce it at the browser layer, so the contractor reaches only what they need and nothing behind it.

How do you secure contractor access on unmanaged or BYOD devices?

Enforce controls in the browser itself, which lets you apply conditional access, data controls, and monitoring without imaging or managing a device you don't own.

How do you offboard contractors quickly and securely?

Use time-bound access that expires with the engagement, so access is revoked automatically rather than through manual cleanup.