How to prevent a bluesnarfing attack

How to Prevent a Bluesnarfing Attack

Bluesnarfing is a type of network attack in which an attacker gains unauthorized access to a wireless device via a Bluetooth connection. Once the hacker has access to the device, they can steal sensitive user information, including personal photos, contact lists, emails, and passwords. Below are several ways you can prevent a Bluesnarfing attack.

Turn off your Bluetooth

There’s no real reason to have your devices connected to Bluetooth all the time. If you only run Bluetooth when you actually need to use it for something, your exposure to a Bluesnarfing attack is greatly diminished.

And if you find it difficult remembering when to turn it off and on, it might be an idea to keep your device in non-discoverable mode instead.

Do not accept pairing requests from unknown contacts

Never accept a pairing request from a source you do not trust. Many culprits will try to access your device by sending an unsolicited contact card or urgent seeming file. Once you accept a hacker’s connection, your data and device becomes compromised.

Don’t hold sensitive information on a Bluetooth device

Although not technically a way to prevent a Bluesnarfing attack, just the act of not storing sensitive or important data on your device mitigates any potential damage you might suffer if a breach does in fact occur.

Have a strong password/PIN

It’s always good housekeeping to have robust passwords and PIN numbers. This holds true for all aspects of cybersecurity and is no less important for your Bluetooth-enabled devices. Simply changing up your passwords on a regular basis is often enough to provide sufficient protection, but adhering to basic password protocols is even better.

Require approval for all connects

Your device should not passively accept pairing requests from either known or unknown contacts. By implementing something like Two-factor Authentication (2FA), you immediately make your active assent a necessity in whether your device connects with another device or not. This puts the initiative into your hands, and takes back control from the hacker.

Mind your distance

Bluetooth attacks are fundamentally limited by physical space. If your would-be attackers out of range of your device, you’re safe.

However, maintaining this cordon sanitaire isn’t always practicable in the real world, but some precautions are easy to implement. One such safeguard is making sure that you never initiate a pairing of your device in public for the first time. Instead, always do this at home, or if you know it to be safe, at a place of work.

Know your devices

Bluesnarfing is the kind of threat that comes to you. This means that you’ll need to always know where your Bluetooth devices are at any given time. Malicious hackers are opportunists, and if your phone or laptop is in the wrong place at the wrong time, it’s not going to be a good outcome.

For more advanced IT inquiries, please contact CPI Solutions.

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