Logging in on someone else’s computer isn’t a wise move – Here’s why:

Let’s look at this fictional example: -

The unusual situation that you find yourself in one day is that your computer’s not working for whatever reason, and your laptop or netbook or iPhone is already in for repair. – Therefore you have no computer of your own available. – But your friend very kindly offers to let you use theirs for a session, just to get your pressing business sorted out in the interim until you can get online.

You arrive at your friend’s house, and after swapping pleasantries you sit at their waiting computer and log in to your important accounts, such as your bank, email, Twitter, etc, see to your important pressing matters, thank your friend, and after another coffee, you start out merrily on your way back home.

The following day the geek you phoned for help the day before gets your desktop working again, and you also are informed that your other hardware is ready to pick up and working perfectly. – But when you attempt to get the money from your bank account to pay for the repairs, you find that your balance is in the red. You also find that you can’t log in to your email account, and someone’s spamming Twitter using your account.

Someone has possibly stolen your identity. Definitely they’ve hijacked your Twitter and email accounts, and stolen all your bank balance. – All just at the worst time that you could have had it happen to you.

How did it happen?

Spyware Woes

Since your friend’s machine is a computer that you don’t normally have control of; you have no idea whether or not keylogger spyware on that machine is recording every keystroke you make and sending resultant data to hacker somewhere on the planet. Your friend had no idea that their machine was so infected either, until all their own accounts were hacked into as well. Other types of spyware were also recording which sites and web pages you visited, for how long, what passwords you used…etc, and the criminals raced each other to see who could get a hold of major parts of your entire online identity first.

… But spyware is not the only worry you would have in using someone else’s computer for personal business: -

Browser Memories

In the browser, form fields in particular, the same ones that you enter your banking account ID and passwords into, are remembered. Sometimes they’re remembered automatically, along with the password entered. Therefore someone could possibly see your user name, select it, and be able to login to your account with your password on the computer you’ve just used: Whether it’s your friend’s machine, a public computer, or even a retailer’s box.

Malice Aforethought

- Even your best friend’s little geeky brother, or sister even, could log on as soon as nobody was watching, enter the username that they overheard in conversation, and have full access to your account(s) from the passwords that the browser remembered.

Let’s not forget, it’s fairly easy to purposely install software or set up browser features to record your user name and password automatically. – So if you don’t trust the computer’s owner 101% then this is a particular reason to not use their machine to log on to your personal accounts. – Even if – in fact especially if – they offer to pay you to do so.

On the other side of the coin the person who allows you to use their computer also can get stung with accusations and/or probing from you and from the authorities during investigation into the crime. – I assure you that this will strain even the strongest of friendships up to or beyond breaking point in many cases.

- So, if necessary, let others who won’t listen to your explanations use terminology about you such as “tight”, “selfish”, “stingy”, “mean”, whatever. – It’s a lot better to have some shallow half-brained person insult you than to lose everything.