Other Wireless Technologies that you wanted to know about.....

Hello everyone welcome to the show "Ethical Hacking" episode 87 today we are going to discuss about We just spent a lot of time talking about wireless networks, but there are other wireless networks out there besides Wi-Fi.These include things like Bluetooth,RFID, Near Field Communication, cellular,GPS, and satellite communications.Previously, we've talked about some vulnerabilities with Bluetooth.I want to remind you of two big terms when it comes to Bluetooth.This is bluejacking and bluesnarfing.I'm covering these again because I guarantee you're going to get at least one question on test day about either bluejacking or bluesnarfing really loves to ask that for some reason.Bluejacking is the sending of unsolicited messages to Bluetooth-enabled devices such as mobile phones and tablets.Bluesnarfing, on the other hand,is the unauthorized access of information from a wireless device through a Bluetooth connection.So, to simplify this for the I want you to remember this.Bluejacking sends information to a device where Bluesnarfing takes information from a device.If you remember those two things,you'll do great on the exam.Also, when it comes to Bluetooth,remember you don't want to allow your device to use the default PIN for its pairing operations You should always change the PIN to something more secure than 1234 or 0000.Next, we have Radio Frequency Identification or RFID.RFID devices have an embedded radio frequency signal that's used to transmit identifying information about the device or the token to a reader that's trying to pick it up.RFID refers to a large category of devices and technologies,but, for the exam, the specifics of RFID are not that important.Instead, you need to focus on the fact that RFID devices can send information from a card to a reader to provide authentication or identification.For example, one of the most common devices that we use RFID for is a card that looks like a credit card,and can be used as part of your alarm system or door access system.So, with these cards, you can swipe your card over the reader, and it identifies you and allows you to enter the building.Because there are so many different types of RFID devices, RFID can operatein either very close environments or very far environments.It can be as close as 10 centimeters from the reader or as high as 200 meters from the reader depending on the particular device and technology in use.Because of that large distance,RFID is subject to eavesdropping,the ability to capture, replay, and rebroadcast its radio frequency as part of a larger attack.To minimize the ability to eavesdrop on RFID, an idea called Near Field Communication was invented.Near Field Communication or NFC allows two devices to transmits information when they're in close proximity to each other.This occurs using an automated pairing process and transmission process of that data.For example, some cellphones have the ability where you can touch the cellphones together to pass photographs back and forth.Other uses of NFC are common place in payment systems.For example, I have an iPhone,and I can hold it over a credit card terminal to pay with my credit card that's linked through Apple Pay.This is an example of a Near Field Communication device.Just like RFID, we do have to worry about the possibility of interception of that wireless information though because it could be replayed and rebroadcast Now, luckily for us, NFC does require the devices to be very close for the communication to work.