But what are they?

And are they that big of an issue?

What Are TunnelVision VPN Attacks?

vpn connected on ios device

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TunnelVision attacks revolve around several internet routing techniques that allow attackers to bypass VPN protection under specific circumstances.

However, the TunnelVision VPN attack isn’t exactly novel.

So, what underlying technique has always been there?

wifi router with person in the background

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Security researchers from Leviathan Security first disclosed the vulnerability in aresearch paper released on May 6, 2024.

However, a lesser-known DHCP feature, Option 121, allows setting alternative routes for specific destinations.

This is where TunnelVision comes into play.

lan switch in server room

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Considering aVPN is supposed to protect your privacy by tunneling your data, that’s a big concern.

Are TunnelVision VPN Attacks as Dangerous as They Seem?

Leviathan’s description of the vulnerability has a few issues.

TunnelVision reroutes your internet traffic; it doesn’t “decloak” it.

If anything, TunnelVision highlights the need to avoid VPNs that haven’t proven themselves.

How Can You Protect Yourself?

However, if you’re using a less-proven VPN provider for whatever reason, it’s time to switch.

We’ve already got acomprehensive list of VPNs for every use caseyou can refer to.

Even then, if your VPN’s kill switch is on, chances are you’re still protected.