What is Defense in Depth? In the medieval era, there used to be multiple layers of security in a castle. The multiple layers of security used to make sure it takes months for an attacker to penetrate the layers of security. A similar concept is used in cybersecurity....
What is a DrDoS attack? DrDoS attack is a type of Distributed Denial of Service or DDoS attack in which an attacker exploits a number of victim machines and make the victim machines send a huge number of requests to a target machine. As a result, the target machine...
What is a VPN? Let’s say an organization has some resources in its private network. An employee wants to access the resources from his home. Now, the employee cannot do so using the public Internet because the public Internet is unsecured by default. The data...
What is a Digital Signature? A digital signature is a mathematical scheme using which we can verify the authenticity of a digital message. If a sender sends a digital message to a recipient and the recipient wants to be sure that the digital message was indeed sent by...
What is a Digital Certificate? A digital certificate is an electronic document that proves the ownership of a public key. A digital certificate contains various information, such as the identity of the owner of the public key, information about the public key and the...
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