Man-in-the-middle attack

A man-in-the-middle attack occurs when an attacker positions themselves between two people or systems to eavesdrop on or alter their communication. This can happen during online transactions, messaging, or even phone calls. The attacker may not be visible to either party, making it difficult to detect.

What it means

The attacker acts as a middleman, intercepting data sent between two parties. This can include sensitive information like passwords, credit card numbers, or personal messages. The attacker might not only listen in but also modify the data being exchanged, leading to potential fraud or data theft.

Why it matters

Man-in-the-middle attacks are dangerous because they can happen without the victim knowing. They can lead to identity theft, financial loss, or the spread of malware. These attacks are common in public Wi-Fi networks, where the attacker can easily intercept data.

What to do

Use encrypted connections like HTTPS whenever possible. Avoid using public Wi-Fi for sensitive tasks. Keep your software and devices updated to protect against known vulnerabilities. If you suspect a man-in-the-middle attack, stop the communication and contact your service provider or IT support.