Your hotel's Wi-Fi login is hiding a dark secret. You get to your room, unpack, and connect your laptop. A normal login screen pops up. It asks for your room number and last name. You type them in. But instead of getting online, a message says your browser needs a critical update. It looks totally real. But the second you click download, you've just handed over the keys to your company's network.
This is a CaptiveCrunch attack. It's a clever adversary-in-the-middle campaign run by a cyberespionage group called Storm-2945. They're targeting business travelers by hijacking hotel networks. Once you connect, they redirect you to fake update pages. That download actually installs a nasty malware payload called CornFlake.
So, how does this put your company at risk, and how do you stop it? Here are three things you need to know.
First, they're stealing your Microsoft 365 session tokens. CornFlake doesn't just grab passwords. It goes after active tokens for your email, OneDrive, and work apps. These tokens are like digital passes. With them, hackers can bypass multi-factor authentication completely. They don't need your password or your authenticator app. They just copy the token and walk right in.
Second, watch out for the trick. Real hotel login pages will never make you download an executable file, an extension, or an update just to get online. Seriously, who updates their browser just to get Wi-Fi? If a login page says Chrome, Edge, or Safari is outdated, close it immediately. That's a huge red flag.
Third, upgrade your security. Before you connect to hotel Wi-Fi, turn on your corporate VPN. Better yet, just use your phone's mobile hotspot. If you absolutely must use the hotel network, double-check the login page with the front desk. And never download anything while connecting.
Don't let your next trip lead to a major security breach. If you want to keep your company's data safe and stay ahead of these threats, share this video with your team. Hit subscribe, and turn on notifications for more security breakdowns. Stay safe, and keep those tokens secure.