Think twice before using public computers: here’s why

On October 1, 2024By Rgal Nv

Have you ever found yourself in a difficult situation, having to check your emails or print a document while you’re on the go? 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 can seem like a lifesaver at times like these. But wait. Before you start typing, let’s see why you should think twice before using these shared machines.

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The sneaky dangers of public computers

1) Malware Chaos

Here is a situation you might face. You’re checking your social media on the computer in a library, coffee shop, or hotel lobby, but little do you know, there’s a digital gremlin lurking in the background. Yes, malware on public computers. These malicious programs can take over your passwords, personal messages, and even financial information faster than you can call “identity theft.”

2) Confidentiality? What privacy?

Using a public computer is like having a conversation in a crowded room: everyone can potentially hear (or see) what you’re doing. The browsers on these machines can be configured to remember everything you do. Your search history, saved passwords, and that embarrassing social media video you watched? All are potentially up for grabs by the next user.

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3) Session Hijacking

Imagine logging into your email, then having a coffee while logged in. In that brief moment, a tech-savvy criminal could hijack your active session, gaining full access to your account without needing your password. They could send emails for you, access your contacts or worse, all without you knowing.

4) Surfing on the shoulders

Public computers are often in busy areas where everyone can glance at your screen. A seemingly innocent bystander could memorize your passwords, credit card details, or other sensitive information as you type. This low-tech but effective method of information theft is surprisingly common.

5) USB port peril

Those handy USB ports on public computers? They may secretly host “USB killers” – devices that can fry your external drive or smartphone when plugged in. Or worse, they could be configured to automatically copy data from any device connected to them.

6) Fake Login Pages

Cybercriminals sometimes create convincing fake login pages on public computers. You think you are logging into your account, but in reality you are transmitting your credentials directly to a hacker. These phishing attempts can be incredibly sophisticated and difficult to spot.

7) Screen Capture Software

Some public computers may be equipped with screen capture software that periodically takes screenshots of user activity. This means that even if you are careful about what you type, sensitive information displayed on the screen can still be captured and stored.

8) Compromised hardware

It’s not just the software you need to worry about. Hardware keyloggers – small devices that record every keystroke – can be physically connected to public computers without being easily visible. 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, when it comes to shared machines, it’s always best to err on the side of caution.

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Best practices on a public computer

Okay, sometimes you just need to use a public computer. I understand. But let’s make sure we don’t leave any digital breadcrumbs for the bad guys:

Go incognito mode: Always use private browsing mode. It’s like wearing an invisibility cloak for your internet activities.Log out, log out, log out: Triple check that you are signed out of all accounts before leaving.Avoid sensitive things: Please, oh please, don’t check your bank account or shop online on public computers. Save it for secure home setup.Caution USB: Are you planning to plug in your USB stick? Think again. It’s an easy way to catch a digital virus.Erase your tracks: Delete your browsing history, cache and all downloaded files. Leaves no trace.

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How to erase your tracks after using a public computer

Here’s how to hide your digital footprints across different browsers when using a public computer. Make sure you do this before logging out:

Chromium:

Launch it Google Chrome Browser on your computer. Click on the three points in the upper right corner of the browser window. Press HistoryScroll down and click Delete browsing data.In the dialog box that appears, select All the time in the time range drop-down list.Check all boxes for the types of data you want to erase, such as Browsing historyClick on Delete data to complete the process

Firefox:

Click on the menu button (three lines) top rightChoose SettingsFaucet Privacy and securityBelow Cookies and site dataclick Clear data (Select History, Cookies and Site Data and Temporary Cached Files and Pages)

Safari:

Click Safari in the top menuSelect Clear historyChoose the whole story in the drop-down menuClick Clear history

Edge:

Click on the three points top rightGo to SettingsFaucet Privacy, search and servicesBelow Delete browsing dataclick Choose what you want to eraseSelect all options and click Clear now

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

Using your own device is certainly safer than a public computer, but don’t worry: Public Wi-Fi can still be a digital minefield. Here’s how to stay safe when surfing on public networks:

1) Use a VPN: Using a VPN protects you from tracking and helps identify your potential location on websites you visit. Many sites can read your IP address and, depending on their privacy settings, display the city you correspond from. A VPN will hide your IP address to show another location. For the best VPN software, check out my expert review of the best VPNs for browsing the web privately on your computer. Windows, Mac, Android and iOS devices.

2) Have powerful antivirus software: The best way to protect yourself from malicious links that install malware and potentially access your private information is to install antivirus software on all your devices. This protection can also alert you to phishing emails and ransomware scams, protecting your personal information and digital assets. Get my pick of the best 2024 antivirus protection winners for your Windows, Mac, Android, and iOS devices.

3) Avoid sensitive transactions: It’s still not the best place to do online banking or shopping. Save it for your secure home network.

4) Keep your software up to date: Those pesky update notifications? They often include important security fixes. So make sure to regularly update your software on all your devices.

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

By implementing these precautions, you can significantly minimize the risks of using public Wi-Fi. Always opt for your personal device with appropriate security measures instead of a public computer when accessing open networks. If you choose to use your own device – an option I highly recommend – consider avoiding public Wi-Fi altogether in such environments. Instead, you can use your iPhone or Android as a mobile hotspot for a more secure connection.

Benefits in public libraries

While navigating the potential pitfalls of public computers may seem daunting, your local library offers a wealth of free digital resources that can enhance your online experience without the associated risks. From borrowing e-books and audiobooks with apps like Libby and Hoopla to accessing free movies and career advice through Kanopy and LinkedIn Learning, libraries are treasure troves of valuable services. Are you curious about the technological advantages offered by your library? Check out our article on free library benefits. You might be pleasantly surprised by what’s available.

Kurt’s Key Takeaways

We’ve covered a lot of topics here, from the sneaky dangers that lurk on public computers to the do’s and don’ts of using public Wi-Fi. The main thing? Be safe, be smart, and always prioritize your digital security. Remember that while public computers and Wi-Fi can save lives in a time of need, they are not without risks. If you absolutely must use them, follow our advice to minimize your exposure. But whenever possible, stick to your own devices and secure networks.

Have you ever faced security issues when using public computers or Wi-Fi? If so, how did you handle the situation? Let us know by writing to us atCyberguy.com/Contact .

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