MITMhyökkäyksiltä

MITMhyökkäys, or Man-in-the-Middle attack, is a type of cyberattack where an attacker secretly intercepts and relays messages between two parties who believe they are communicating directly with each other. The attacker positions themselves in the communication path, impersonating each party to the other. This allows the attacker to eavesdrop on the communication, steal sensitive information such as login credentials or financial data, or even alter the content of the messages exchanged.

There are several common methods for carrying out MITM attacks. One is ARP spoofing, where an attacker sends falsified ARP messages onto a local area network. This associates the attacker's MAC address with the IP address of another host, often the default gateway, redirecting traffic through the attacker's machine. Another method is DNS spoofing, which involves corrupting DNS data to redirect traffic intended for a legitimate website to a malicious one controlled by the attacker. SSL/TLS stripping is also a technique where an attacker intercepts an HTTPS connection and forces it to revert to unencrypted HTTP, allowing them to see the data in plain text.

Preventing MITM attacks involves several security measures. Using strong encryption protocols like HTTPS for all web traffic is crucial. VPNs (Virtual Private Networks) can also create an encrypted tunnel for your internet connection, making it much harder for attackers to intercept your data. Educating users about the risks of public Wi-Fi and avoiding sensitive transactions on unsecured networks is also important. Network administrators can implement measures like ARP inspection and secure DNS configurations to further mitigate these threats.