What is RFID? RFID or Radio Frequency Identification is a technology that uses electromagnetic fields to read an RFID tag that is attached to an object. Unlike a barcode, an RFID tag does not need to be placed within the line of sight of a reader. Instead, when an...
What is Near Field Communication (NFC)? Near Field Communication or NFC is a set of communication protocols using which two electronic devices can communicate with each other over a short distance, usually a few cms. NFC uses electromagnetic induction between two loop...
Ping is a software utility that is used to test the reachability of a host on an IP network. Ping works by sending ICMP Echo Request packets to a target host, and after sending the ping packets, the sender waits for replies from the target host. The target host sends...
What is WEP? Wired Equivalent Privacy or WEP is a security algorithm for IEEE 802.11 wireless networks. It was a Wi-Fi security standard in 1999. Later, the algorithm was found to be insecure, and hence, it was superseded by Wi-Fi Protected Access or WPA in 2003. WEP...
What is Jamming Attack? A jamming attack is an attack in which an attacker transfers interfering signals on a wireless network intentionally. As a result, it decreases the signal-to-noise ratio at the receiver side and disrupts existing wireless communication. The...
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