Chris Brook

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"Distrust and caution are the parents of security" - Benjamin Franklin

Snail mail the data

Another way to avoid having your digital privacy intruded upon is to backup all the data onto an external hard drive, USB drive or SD card (making sure the content of your backup is encrypted, of course). You can then ship the data to your destination. With your data copied off the device, you can wipe the machine you just backed up, and travel across the border with a completely blank device or one with the default configuration. Once reunited with the external hard drive you can restore the data to whichever machine you ended up traveling with.

Snail mail the drive

Not comfortable sticking your precious mobile device in the mail? Remove the hard drive from the device and snail mail that to your destination. If you’re flying, pack it in your checked bag. If necessary, you can travel with a second, blank hard drive in case you need access to the computer while in transit.

(Hard drive image via walknboston‘s Flickr photostream)

Snail mail the device

Don’t want to have your device seized when you cross the border? Why not just stick it in the mail? True: there are no privacy protections afforded to data sent by post. But you can avoid awkward confrontations with border agents if you mailed it and you won’t be questioned about your devices or prodded for passphrases to decrypt them.



Many of EFF’s recommendations involve copying data onto an external device and then removing it from the device you’ll be carrying across the border. When doing this, you will want to make sure that the data you delete is actually gone. Simply pressing the ‘delete’ key or emptying the desktop waste basket makes the data disappear, but it doesn’t necessarily remove the data in question from a device.

Encrypt!

The EFF are huge proponents of full-disk encryption with strong cryptography on every device you own. This is especially true if you’re concerned about having your mobile device seized at the border. A government forensics expert can easily crack any password or bypass it altogether (for example, by booting the system from a CD or USB device.) Full-disk encryption with a strong passphrase ensures that border agents can only enter your device with your consent. It also protects your data if your device is lost or stolen.

Searches and seizure is not limited to personal computers or laptops. Any device that stores data is fair game for Customs and Border Protection or Immigration and Customs Enforcement (ICE) Agents. This includes all computers, laptops, tablets, mp3 and mobile media players, digital cameras, hard-drives, and any other mobile device you can imagine. If it stores data, Customs can search it. To be fair, the government only conducts these types of searches 300 or so times a month. So the likelihood of being searched is still small.

The EFF has some advice for interacting with border agents. First: don’t lie to them. This is a punishable crime regardless of whether you are lying to cover something up or not. It is always better to decline answering than it is to give a false answer. Don’t obstruct an Agent’s investigation or attempt to delete data once it becomes clear that an agent intends on examining a device. Just write down the agent’s identifying information and collect a receipt for your property. Be courteous, but firm. Only a judge can make you reveal a passphrase or otherwise decrypt a machine.

With U.S. Customs agents increasingly interested in the contents of digital devices like iPhones, iPads and laptops, The Electronic Frontier Foundation has issued guidance for getting your mobile device across the border safely and protecting the data on it should it get seized.