Public computers are found in Cyber/
Internet cafés, Libraries, college labs amongst other places. Using such
computers is likely to expose our private data to into insecure hands. This is
because you have no control over the computer: you do not have
the privilege to install security software such as a firewall to
block hack attacks and an antivirus app to keep out malware. You may
not add a spam filter to
protect your Inbox, or a security suite that
wraps comprehensive protection in handy package! Here are tips for safe use of
public computers.
Built-in
Safe Browsing
For
your convenience, the browser keeps a history of sites you've visited, stores
cookies that retain personal settings for sites, and caches files for faster
loading of sites you visited before. That's fine at home, but when you're using
a public computer you don't want the browser storing all that information.
Fortunately
most modern browsers can run in a mode that suppresses information-gathering
and protects your privacy. You can right-click the Internet Explorer icon and
choose "Start InPrivate Browsing," or right-click on the Firefox icon
and choose "Enter private browsing." For either Firefox or IE,
pressing Ctrl+Shift+P during a normal browsing session switches to private
browsing. In Chrome, the private browsing mode is called "Incognito
mode," and pressing Ctrl+Shift+N opens an Incognito mode window.
One more thing; be sure to shut down
the browser when you're done. Even private browsing doesn't disable the Back
button. You don't want the next user backing into your Facebook session or
Web-based email account.
I
Forgot! Now What?
Of
course, there's every possibility you'll sit down to a public computer, check
your bank balance, send a few emails… and only later remember that you should
have opted for privacy. Fear not; erasing your activity is simple. In Chrome,
Firefox, or Internet Explorer you simply press Ctrl+Shift+Del to call up the dialog
for deleting your history. The details vary, but you'll want to make sure
you've selected all of the options for deletion. Chrome and Firefox let you
specify how far back the cleansing should go. Do other users a favor and have
it clear all history, not just the last hour.
Cloak
and Dagger
It's
conceivable that the computer you're using might be seriously compromised
security-wise. For example, a stealthed keylogger application could capture all
passwords typed on the system. A hardware keylogger could do the same, with no
possibility of detection by security software.
Your best bet is to simply refrain
from sensitive transactions on a public computer. If you absolutely must log in
to an important secure site on a suspect computer, here's one way to make
password theft difficult: bring up a page with lots of text in the browser and
copy/paste characters from that page into the password dialog. This
"ransom note" style is decidedly tedious, but even a spy program that
captures periodic screenshots probably won't snap all parts of your password.
Secure
Your Connection
A
shady Internet café operator could possibly make some money on the side by
siphoning passwords out of data packets passing through the wireless network.
The guy at the next table might be intercepting your connection using Firesheep or
a similar tool. If you really must engage in sensitive communication, you need
to secure the connection.
One way to do that is through a VPN
(Virtual Private Network), which routes your surfing through a secure
connection. Find a number of free VPN clients rounded
up PCMag . The problem here is that you probably don't have
permission to install them on the public computer. However, VPN protection is
definitely worthwhile if you've connected your own laptop to an iffy hotspot.
Go
Naked
When
government representatives and business executives visit China or Russia,
they go "electronically naked." They leave all personal or company
phones and laptops behind, using a new, blank loaner phone or laptop if
necessary. It's an extreme step, but if you're not carrying any sensitive
information there's nothing for a hacker to steal.
As you can see, there's a whole range
of precautions you might take to keep an Internet café session from turning
into an identity theft nightmare. If you're forced to use public computers for
sensitive communication, consider using ransom-note passwords and possibly a
VPN. Don't engage in any sensitive communication that you could just as well do
from your home or office.
But even if you're doing nothing more
than checking Facebook and emailing your dear auntie, do take the minimal
precautions. Invoke the browser's privacy mode, or clear browsing data if you
forgot. Doing so just takes a second and can save hours of aggravation.
Very informative and well written post! Quite interesting and nice topic chosen for the post.
ReplyDeleteToshiba - 15.6" Tecra Notebook - 4 GB Memory - 500 GB Hard Drive - Graphite Black Metallic
Toshiba - Ultrabook 14.4" Laptop - 6GB Memory - 500GB Hard Drive + 32GB Solid State Drive - Midnight Silver Aluminum