What is a man-in-the-middle attack (#MITM)?

In the world of cryptocurrencies and cybersecurity, a man-in-the-middle attack is a sneaky method where a hacker quietly inserts themselves between two parties communicating. Imagine: you think you are talking to a fren, but in reality, your messages are being intercepted and altered by a malicious actor. Terrible, isn't it?

I personally have faced similar threats - when working with unsecured Wi-Fi networks, I always felt anxious. Malicious actors use such attacks to steal credentials, private keys, and other confidential information. They can redirect you to fake websites that look like the real ones, and you may not even notice the substitution!

The most terrifying thing is that detecting such attacks is almost impossible. Even encryption does not always save, as crafty hackers find workarounds. They can intercept traffic, record data, and forward it to its destination, remaining invisible.

A successful man-in-the-middle attack is only possible when the attacker perfectly mimics both sides of the communication. That is why most modern cryptographic protocols use endpoint authentication. For example, TLS can verify parties through trusted certificates.

Do not confuse MITM with “man-in-the-middle attack” - this is a completely different type of threat.