Dynamic ARP Inspection (DAI) is a security feature that can intercept ARP packets in a network and filter out invalid ARP packets that bind an IP address with an invalid MAC address. This security feature can protect a network from certain Man-In-The-Middle attacks....
DHCP Spoofing attack is an attack in which attackers set up a rogue DHCP server and use that to send forged DHCP responses to devices in a network. Attackers often use this attack to replace the IP addresses of Default Gateway and DNS servers and thereby divert...
DHCP Starvation attack is an attack in which attackers deplete the IP address space available to a DHCP server and thereby cause a denial of service to legitimate devices in a network. Attackers can use various methods to perpetrate a DHCP Starvation attack. But, they...
What is a DNS sinkhole? Let’s say an employee of a company has received one phishing email. He could not recognize the phishing attempt and clicked on the phishing link or opened an attachment to the email. As a result, the employee’s system tries to connect to the...
Many of us know that in TLS when we want to transfer some sensitive data, we do not encrypt it using public-key encryption. Instead, we use a symmetric key to encrypt the data. But why do we do so? If a TLS client encrypts the actual data, for example, by using the...
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