Man-in-the-Middle (MitM)

A Man-in-the-Middle (MitM) attack is a type of cyberattack in which an attacker intercepts and possibly alters communications between two parties without their knowledge or consent. This attack occurs when an adversary positions themselves between the sender and receiver of data, effectively becoming an intermediary that can eavesdrop on or manipulate the data being transmitted.

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A MitM – attack describes a generalized attack that can be executed in various ways such as:

Packet Sniffing: Intercepting and analyzing network traffic to collect data.

ARP Spoofing: Manipulating the Address Resolution Protocol (ARP) to associate the attacker’s MAC address with the IP address of the victim, redirecting their traffic through the attacker’s machine.

DNS Spoofing: Forcing a victim to connect to a malicious DNS server, allowing the attacker to control which websites the victim can access.

SSL Stripping: Downgrading secure HTTPS connections to unsecured HTTP, making the data transmitted vulnerable to interception.

Email Hijacking: Intercepting and altering email communications between parties.

MitM attacks are a serious security threat, and they can occur in various contexts, including public Wi-Fi networks, corporate networks, and even within a user’s home network. To protect against MitM attacks, individuals and organizations should use secure communication protocols, such as HTTPS, employ strong encryption, keep software and systems updated, and use virtual private networks (VPNs) to establish secure connections on untrusted networks.