The first lesson is that you can’t trust the network. All email and web browsing can be intercepted by anyone in the vicinity of an airport lounge or café where you use Wi-Fi. Your hotel can access any communication channeled through its network, and anything you’ve sent or downloaded on a local data plan is equally accessible. Your emails back to HQ might not be of as much interest as a world leader’s, but still, you have some pretty valuable secrets, right?

Use a virtual private network (VPN). This can be either a business VPN tied to your corporate network or a personal one that connects to a server in the country of your choice. Added bonus: you can bypass any local bans of sites such as Facebook, YouTube and Netflix.

Similarly, every phone call and text that you send will go through networks that can be monitored. Encryption may provide the answer. FaceTime and WhatsApp are encrypted by default. Alternatives include Silent Circle and Open Whisper Systems.

For those who are gifted at leaving phones on airplanes or laptops in hotels, talk to your IT department about enabling whole-disk encryption on your hardware. It will render your information gibberish should someone copy it. For the increasingly paranoid, ask them to set a “BIOS” password – this will bolster the security of your operating system.

Think a nation state might be after you? Use a laptop with a bad maintenance rating. The harder it is to fix, the harder it is to put an evil chip into it.

In addition to having anti-virus software, update your software before your trip and don’t install any updates while you’re on the road. They can make you vulnerable.

Another threat is malicious software. Once on your device it can do whatever it likes, stealing or destroying your information, or surreptitiously turning on the camera and microphone. As a last resort, don’t do anything in front of your devices you wouldn’t want a cyber attacker to witness. It’s probably best to leave the handcuffs at home, or at the very least, on the briefcase.

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