Think twice before using a public computer: Here’s why

Have you ever found yourself in a pinch when you need to check your email or print a document while you’re out and about? Maybe you’re traveling and need to send a quick message. Or maybe you’re at a coffee shop and want to catch up on work. Public computers in libraries, hotel lobbies, or Internet cafes may seem like a savior in times like this. But wait a minute. Before we start typing, let’s discuss why you should think twice before using these shared machines.

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The sneaky dangers of public computers

1) Disruption caused by malware

Here are the situations you may face: You’re checking social media on a computer in a library, cafe, or hotel lobby, but little do you know that there are digital gremlins lurking in the background. Yes, malware on public computers. These pesky programs can steal passwords, personal messages, and even financial information faster than you can say “identity theft.”

2) Privacy? What kind of privacy?

Using a public computer is like having a conversation in a crowded room. Chances are everyone can hear (or see) what you’re doing. The browsers on these machines may be set to remember all your actions. Do you have your search history, saved passwords, and embarrassing social media videos you’ve watched? Everything is available to the next user.

Library shared computer (Kurt “Cyber ​​Guy” Knutson)

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3) Session hijacking

Imagine logging into your email and staying logged in for a cup of coffee. In that split second, a tech-savvy criminal could hijack your active session and gain full access to your account without requiring a password. Without you knowing, they can impersonate you to send emails, access your contacts, or worse.

4) Shoulder surfing

Public computers are often located in crowded areas where everyone can get a glimpse of the screen. Seemingly innocent bystanders can memorize passwords, credit card details, and other sensitive information as you type. This low-tech but effective method of information theft is surprisingly common.

5) Danger of USB ports

Is that a convenient USB port on a public computer? It may secretly contain a “USB killer,” a device that can boot your external drive or smartphone if you plug it in. Even worse, it may be set to automatically copy data from connected devices.

6) Fake login page

Cybercriminals sometimes set up convincingly fake login pages on public computers. You think you’re logging into your account, but you’re actually handing your credentials directly to the hacker. These phishing attempts can be very sophisticated and difficult to spot.

7) Screen capture software

Some public computers may have screen capture software installed that periodically takes screenshots of your activity. This means that even if you are careful what you type, sensitive information that you see on your screen can be captured and stored.

8) Compromised Hardware

Software isn’t the only thing you need to worry about. Hardware keyloggers (small devices that record every keystroke) can be physically connected to a public computer and remain unobtrusive. These devices can capture everything you type, from passwords to private messages.

By understanding these hidden risks, you can better protect yourself when using public computers. Remember, it’s always better to be cautious when it comes to shared machines.

Library shared computer (Kurt “Cyber ​​Guy” Knutson)

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Best practices for public computers

Well, sometimes you have to use a public computer. Understood. But be careful to leave digital breadcrumbs so bad guys can’t track you down.

Run in incognito mode: Always use private browsing mode. It’s like wearing an invisibility cloak for your internet activities. Logout, logout, logout: Triple check to make sure you’re signed out of all your accounts before you leave. Avoid anything sensitive: please. You can open a bank account and shop online using public computers. Save it for safe home setup. USB Note: Thinking about connecting a USB drive? Think again. This is an easy way to get infected with a digital virus. Clear your traces: Delete your browsing history, cache, and downloaded files. Leave no trace.

People operating computers in the library (Kurt “Cyber ​​Guy” Knutson)

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How to erase traces after using a public computer

Here’s how to cover your digital footprint with different browsers when using public computers. Be sure to do this before logging out.

chromium:

Launch the Google Chrome browser on your computer. Click the three dots in the upper right corner of your browser window. Tap (History), scroll down, and click (Clear browsing data). In the dialog that appears, select (All Time Periods) from the Time Range dropdown. Check all the boxes for the types of data you want to clear, such as your browsing history. Click (Delete Data) to complete the process.

Firefox:

Click the menu button (three lines) in the top right corner. Select (Settings). Tap (Privacy and Security). Under Cookies and Site Data, click (Clear Data). (Select Site Data and Temporarily Cached Files and Pages)

Safari:

Click Safari in the top menu. Select “Clear History”. Select All History from the dropdown menu. Click “Clear History”.

corner:

Click the three dots in the top right corner (Settings) Tap (Privacy, Search, and Services) Under (Delete browsing data), click (Choose what to clear) All options Select and click (Clear now)

What happens if I use my device on public Wi-Fi?

While using your own device is definitely safer than a public computer, public Wi-Fi can still be a digital minefield, so tread carefully. Here’s how to stay safe when surfing on public networks.

1) Use a VPN: Using a VPN can help protect you from tracking and identify your potential location on the websites you visit. Many sites can read your IP address and, depending on your privacy settings, may show you the city you are communicating from. A VPN spoofs your IP address and displays a different location. For the best VPN software, check out my expert reviews of the best VPNs for privately browsing the web on Windows, Mac, Android, and iOS devices.

2) Use strong antivirus software: The best way to protect yourself from malicious links that can install malware and access your personal information is to install antivirus software on all your devices . This protection also warns you about phishing emails and ransomware scams, keeping your personal information and digital assets safe. Check out my picks for the best antivirus protection products of 2024 for your Windows, Mac, Android, and iOS devices.

3) Avoid sensitive transactions: Still not the best place for online banking and shopping. Save it for your secure home network.

4) Keep your software up to date: Tired of annoying update notifications? They often include important security patches. Therefore, update the software on all your devices regularly.

5) Use two-factor authentication: 2FA is like having a second lock on your digital door.

By taking these precautions, you can greatly minimize the risks associated with using public Wi-Fi. When accessing open networks, always choose a personal device with appropriate security measures rather than a public computer. If you use your own device, this is highly recommended, but consider avoiding public Wi-Fi altogether in those environments. Instead, you can use your iPhone or Android as a mobile hotspot for a more secure connection.

Person using mobile phone as hotspot for laptop (Kurt “Cyber ​​Guy” Knutson)

Public library benefits

Dealing with the potential pitfalls of public computers can be daunting, but your local library offers a wealth of free digital resources that can enhance your online experience without any risks. has been. From borrowing e-books and audiobooks through apps like Libby and Hoopla to accessing free movies and career advice through Kanopy and LinkedIn Learning, libraries are a treasure trove of valuable services. Interested in the high-tech goodies your library has to offer? Check out our article on library freebies. You might be surprised at what’s available.

Library shared computer (Kurt “Cyber ​​Guy” Knutson)

Cart important points

We’ve covered a lot here, from the sneaky dangers of public computers to the do’s and don’ts of using public Wi-Fi. The bottom line? Be careful, be smart, and always prioritize digital safety. Remember that public computers and Wi-Fi can be a lifesaver in a pinch, but they’re not without risks. If you must use it, follow our tips to minimize exposure. However, please use your own devices and secure networks whenever possible.

Have you ever faced security issues while using a public computer or Wi-Fi? If so, how did you handle the situation? Email Cyberguy.com/Contact Please let us know.

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