What is Bluejacking?
The term bluejacking refers to an attack that would endanger the proper functioning of a connection. BluetoothIt basically means that a person, an intruder, is going to be able to send a message using this wireless network technology to another person without their consent.
If your device is Bluetooth enabled, active, and also within range of someone else who would be an attacker, you could be a victim of bluejacking. The attacker will locate this computer and can send a message to the victim. What it does is exploit the function that this technology has which allows a device to send a message as long as it is within range.
Keep in mind that Bluetooth works normally here 10-15 metersAlso, it is difficult for them to work, so don’t expect anyone to attack you when you are at home, because it would be very rare for them to have access to your device. But this is more common in crowded places, like malls, for example.
Therefore, the fact of bluejacking is that send unauthorized messages by bluetooth. For example, an intruder can send it to our mobile. This also includes images or files. Moreover, these messages would remain anonymous because only the model and name of the device that the attacker wanted to give would be displayed. It will not display phone numbers or any personal data.
This is usually a harmless attack
Is this really a major security attack? the truth is that it is usually a harmless attackUnlike other issues we may suffer with Bluetooth, Wi-Fi networks, and our devices in general, this is not a threat that by itself can cause significant security and privacy issues.
Ultimately, what a potential intruder will do is send a message, we’ll focus on the content it sends to the phone, but nothing more. It is not about entering our mobile, nor about malware or password theft as can be the case with a phishing attack by email or SMS, for example.
Although more complex than other attacks, with this method a potential intruder can send us a message telling us to do something that threatens our security and privacy. For example, inviting us to access a web page that is actually fraudulent. Also, through the image you send us, it may contain text that, likewise, invites us to enter a site that is actually a fraud.
This is when we enter a malicious page where they can steal our data and compromise system security. For example if we upload a malicious file or enter personal data.
What to do to avoid this?
How to avoid being a victim of bluejacking? Although it is generally something harmless and does not pose any real security problems, it is important to keep some tips in mind to avoid receiving messages that we do not want. At least to avoid the potential inconvenience this would cause.
turn off bluetooth when not in use
the first trick is don’t keep bluetooth on beyond what is necessary. It is a technology that we can use to link headphones, exchange files with other devices, etc. But once we stop using it, it’s not so good to keep it always on, because it will be available for everyone.
Therefore, we recommend lock up And only enable it if you actually plan to use it. Moreover, it will also help to save battery power. If you have it, it will continue to send and receive data while searching for possible devices to sync.
Keep in mind that many current mobiles are already configured by default to disable Bluetooth over time. This helps prevent bluejacking attacks and also other serious issues that can affect the device without our knowledge.
Beware of the text we receive
Did you receive an SMS via Bluetooth and you really don’t know who sent it? Be careful and analyze it carefully. Maybe you received it by mistake, for example if someone sent it thinking it was someone else’s device. but it can be a Report,
Beyond the annoyance, this message may contain text prompting you to access a web page that would pose a significant security problem. Never visit websites or download files that may prompt you to download them. In such a situation, they can put your safety at risk.
Always update the device
To keep updated device is always important. This is not only to avoid safety issues, but also to ensure optimal operation. Therefore, another recommendation is to always update the device you are using via Bluetooth as well as the drivers.
This will help fix some vulnerabilities that can be exploited, not only for the bluejacking attack but also for many other techniques that can be used against you without realizing it and can be a very serious problem. East.
In short, as you have seen, bluejacking is a technique in which they use Bluetooth to send messages anonymously to a device. It can be sent by anyone as long as they are within signal range, which is usually no more than a few tens of meters. Although it is not a very serious security problem, like other attacks, it is advisable to take precautions and thus avoid compromising our data.