Free public WiFi is now accessible in numerous locations. Airports, hotels, and coffee shops all advertise free internet access as a perk of their services. For a lot of folks, having the ability to connect to free internet while on the move feels perfect. This is especially handy for traveling business professionals, who can now check their work emails or upload documents online. However, using public WiFi hotspots comes with insecure than many internet users may have thought, and most of these dangers are linked to Man in the Middle attacks.
What is Man in the Middle attack?
A Man in the Middle (MitM) attack happens when a bad actor gets in the way of communication between two people. There are different kinds of MitM attacks, but one of the most frequent ones is when a user’s request to visit a website is intercepted, and a fake webpage that seems real is sent back instead. This can occur on almost any site, whether it’s online banking, file sharing, or email services.
For instance, if Alice is trying to check her email and a hacker intercepts the communication between her device and the email service, he can execute a MitM attack, tricking her into a counterfeit website. If the hacker manages to get her login details, he could misuse her email to carry out even more harmful activities, like sending phishing emails to Alice’s contacts.
So, the Man in the Middle is essentially a third party that can intercept the data exchanged between two points, acting like a legitimate middleman. Typically, MitM attacks aim to deceive users into entering their sensitive information on a fake site, but they can also be used just to eavesdrop on a private conversation.
What is WiFi eavesdropping?
WiFi eavesdropping is a type of Man-in-the-Middle (MitM) attack where a hacker takes advantage of public WiFi to keep an eye on what anyone connected to it is doing. The data they intercept can range from personal information to trends in internet usage and browsing habits.
Usually, this is achieved by setting up a fake WiFi network that looks like a legitimate one. The name of this bogus hotspot is often very close to that of a nearby store or business. This tactic is commonly referred to as the Evil Twin method.
For instance, a customer might walk into a coffee shop and notice three WiFi networks with similar names: CoffeeShop, CoffeeShop1, and CoffeeShop2. There’s a good chance that at least one of these is a scammer’s WiFi.
Hackers can use this method to gather data from any device that connects, which ultimately enables them to steal login details, credit card info, and other sensitive information.
WiFi eavesdropping is just one of the dangers linked to public networks, so it’s best to steer clear of them whenever possible. If you absolutely have to use public WiFi, be sure to ask an employee if it’s genuine and safe.
What is Packet Sniffing?
At times, criminals utilize certain software to capture data. These tools, called packet sniffers, are frequently employed by legitimate IT experts to log digital network traffic, which helps them identify and troubleshoot issues more effectively. They also monitor internet browsing habits within private companies.
However, a lot of these packet analyzers are hijacked by cybercriminals to collect sensitive information and engage in unlawful activities. So, even if everything seems fine initially, victims might later discover that someone has perpetrated identity theft against them or that their company’s confidential data has been compromised in some way.
What is Cookies Theft and Session Hijacking?
In simple terms, cookies are tiny bits of data that web browsers gather from websites to keep track of some browsing info. These data packets are typically saved locally (as text files) on the user’s computer, allowing the website to recognize them when they come back.
Cookies are handy because they help users interact with the websites they visit. For instance, cookies let users stay logged in without needing to re-enter their credentials every time they visit a specific page. They can also be used by online stores to remember items that customers have previously added to their shopping carts or to track their browsing habits.
Since cookies are just plain text files, they can’t carry keyloggers or malware, so they won’t harm your computer. However, they can pose privacy risks and are often involved in Man-in-the-Middle (MitM) attacks.
If bad actors manage to intercept and steal the cookies you’re using to interact with websites, they can exploit that information against you. This is known as Cookie Theft and is often linked to what we refer to as Session Hijacking.
A successful session hijacking enables an attacker to impersonate the victim and interact with websites on their behalf. This means they can use the victim’s current session to access personal emails or other sites that might hold sensitive information. Session hijacking frequently happens at public WiFi hotspots because these locations are easier to monitor and are much more susceptible to MitM attacks.
How to protect yourself and your Cryptocurrency Transactions
You actually know some Free public WiFi attacks, here is a way to save yourself and your Cryptocurrency Transactions.
- Disable any settings that let your device automatically connect to available WiFi networks.
- Turn off file sharing and log out of any accounts you aren’t using.
- Whenever possible, use WiFi networks that are password-protected. If you have to use a public WiFi network, try to avoid sending or accessing sensitive information.
- Make sure your operating system and antivirus software are up to date.
- Steer clear of any financial transactions while on public networks, including cryptocurrency transactions.
- Use websites that employ the HTTPS protocol. Just remember, some hackers can spoof HTTPS, so this isn’t a completely foolproof method.
- It’s always a good idea to use a Virtual Private Network (VPN), especially when accessing sensitive or business-related information.
- Be cautious of fake WiFi networks. Don’t trust a WiFi name just because it resembles that of a store or company. If you’re unsure, ask a staff member to verify the network’s authenticity. You can also inquire if they have a secure network you can use.
- If you’re not using it, turn off your WiFi and Bluetooth. Avoid connecting to public networks unless absolutely necessary.
Conclusion
Cybercriminals are constantly on the hunt for fresh methods to get into people’s data, making it crucial to keep yourself informed and alert. In this discussion, we covered several insecure associated with public WiFi networks. While many of these risks can be reduced by simply using a password-protected connection, it’s vital to grasp how these attacks operate and what you can do to avoid becoming the next target.