What is HMAC? When data is transferred over an unreliable medium like the Internet, we need some way to check that the stated sender has indeed sent the message and the message is not modified after it is sent. We use the Message Authentication Code or MAC for that...
What is Sniffing Attack? Sniffing attack is an attack in which attackers capture network traffic and steal sensitive data for malicious purposes. Attackers often use a sniffer for this purpose. A sniffer or packet analyzer is a computer program or a piece of hardware...
What is the CIA Triad? At the core of information security is the assurance that information is not compromised when any critical issue arises. There can be many critical issues such as natural disasters, server malfunctions, physical damage to computers or theft of...
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 Unified Threat Management (UTM)? Unified Threat Management or UTM refers to a security solution that provides multiple security functionalities. A UTM solution usually includes a firewall, IDS, IPS, anti-virus solution, etc. from the same vendor and it...
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