
You have to make the decision.
You may have been invited to use a location-based service like Foursquare or Gowalla already. If not, you can expect that you will before 2010 is over. Or, more likely, you’re going to get an email telling you that one of your friends has checked you into a location using Facebook Places.
And when this happens, you have to decide: Do I need everyone to know where I am?
Okay. Maybe you aren’t letting “everyone” know where you are. It’s just your “friends” on a location-based service. But many Foursquare users also tweet their location to their public timeline, which means that everyone—at least, everyone who cares—could figure out exactly where you are.
Background on Location Services
Google Latitude, which allows you to broadcast your location twenty-four hours a day, has been around for more than a year. And once it got over some initial privacy concerns, it basically became another one of Google’s innovative yet obscure services that not too many people use.
To date, only 4% of Americans have tried one a location-based service, and only 1% use one on a weekly basis, according to Gartner. People are not showing much interest in leaving digital breadcrumbs wherever they go.
So why even think about this niche of a niche?
First of all, more and more people are getting GPS (global positioning system) enabled smartphones. This makes cool apps like our free Anti-Theft for Mobile possible, and it makes it easy to broadcast your location. And more importantly, Facebook is getting into the location game.
How Will Facebook Change the Game?
Facebook Places has only been introduced in the United States and Canada, but it has already sparked so much interest in location-based social networking that its competitor Foursquare just passed the 3,000,000 registration mark, which means that it’s only 547,000,000 users behind Facebook.
With a user base of more than half a billion people around the globe, Facebook intends to push location networking into the mainstream. It also has added another level to these types of services by allowing users to check their friends into locations. And of course, this could allow for some mischief.
The Potential for Mischief
Using Places, your Facebook friends could check you into places you shouldn’t be like a bar during your lunch hour. But in reality, they could always could lie about you in status updates. Even worse, any of your friends could also easily tag your name in an embarrassing photo you may or may not be in.
(To prevent anyone on Facebook seeing you tagged in friends’ photos and videos you may not approve of, go to “Privacy Settings”> “Customize Settings”> “Photos and videos I’m tagged in”> “Customize”> “Only Me”)
And you may already be using a location-based service now without realizing it. The website ICanStalkU.com is trying to make people aware that many smartphones are automatically tagging photos with location data. You can turn off location tagging on your phone, using ICanStalkU’s handy guide.
Now, you are probably wondering: could using location-based services be dangerous?
The Potential for Physical Danger
It’s possible to imagine a scenario where someone could stalk you using the data you’re sharing on Foursquare or Facebook Places. But if you’re using Facebook at all, especially without practicing safer Facebooking, you’re making a stalker’s life easier.
USA Today’s Kim Komando describes a scary real-life scenario. Using Foursquare, a stranger found and contacted a woman as she was eating dinner in a restaurant . That’s the kind of scenario most of us would like to avoid.
If you have any concerns about being profiled or stalked, be very careful about any sort of geolocation services, and social media in general. A recent case suggests that, at least in the U.S., restraining orders are valid in cyberspace. But “better safe than sorry” is a good mantra to repeat while using the mobile Internet.
If you’re living in Mexico City where kidnapping occurs at “alarming rates“, using a service that broadcasts your exact physical situation would be insane. However, if you’re living somewhere where you feel safe in general, geolocating probably won’t add any more danger into your life than any social network would.
If that’s worth the risk of running into someone you didn’t want to see, give it a try. But don’t expect Foursquare to protect your privacy. Here’s a good source of information on how to secure your “check-ins” for Foursquare. You can these basic privacy concepts—like checking in to a destination as you leave—to most any location service.
If you’re an adult who is smart about what you share online, there aren’t many new security risks inherent in using location services. Maybe you’re opening your private life to an annoying work colleague or pesky marketer. However, participating in a social network does mean that in a way you’re trusting your safety to your friends on the Internet.
It comes down to this: if in the pit of your stomach you feel any concern about making your location known, don’t do it.
Property Theft
F-Secure Security Advisor Sean Sullivan points out that a thief is going to learn a lot more staring at your driveway than at your Facebook page. By using a location service you are making your schedule public, but you’re hopefully not publishing an exact record of who is at your home at any given time. The bad guys may know you’re out, but they don’t know who else is home.
On rare occasions, Facebook has been used to facilitate a crime. But the same could be said for the white pages.
Facebook becomes dangerous when you “friend” people that you do not really know. Social networks make it easy to connect with people from your past or people who you’d never meet. But your information is only as safe as the most questionable member of your network. If you decide to share your location, take an extra close look at your friends list and defriend some people if you have to.
Privacy
What you probably think most when you think about privacy is: How will this affect my ability to get a job I want?
Do you need your next boss to know that you at Taco Bell 5 times in March? Will being the “mayor” of a local pub help you during salary negotiations?
Will employers ever check applicants Foursquare accounts. Maybe not. But if they may well check your Facebook page, unless you’re in Finland or possibly Germany. And there they could find your Facebook Places data, unless you’ve carefully set your privacy settings.
This is something you need to think about before you start publishing your whereabouts. While most services intend to limit your data to your chosen friends, there is always a possibility that your social media data can go public.
The privacy of young people is a much more serious concern. Children with cell phones need to be instructed on how to use location-based services safely, if at all.
Experts have said that said teenage girls are most likely to be the victims of cyberextortion. Not too surprising. “Jailbait” websites specialize in gathering provocative pictures of young girls, which may or may not have been posted by the girl herself.
What if your child’s pictures ended up in a lurid site like that with the location information tagged to the image? That’s a privacy problem that could escalate into something much more dangerous. So let know your children know how to disable the geotagging settings on your their phones now.
Conclusion
We are at the dawn of a new era in social networking. Perhaps in a few short years we’ll all know where everyone is all the time. And as that happens, you know that the bad guys will come up with ways to use this technology against us. But for now, it’s a new frontier that might be worth exploring. Perhaps location-based fun will add layers to your life you never imagined, the way Facebook and Twitter have.
Or you just may want to disable Facebook Places now and forget that you ever were invited to join a location-based service.
CC image by: David Fisher

Once upon a time, Spam was a salty lunch meat. Then it became unwanted email. Then spam became anything on a webpage that was self-serving, repetitive or annoying. And now Facebook has taken spam—like everything else on the Internet—and made it way easier to share with your friends.
I lost 5 year’s worth of photos the other day. It happened a few days ago, when I started hearing an odd grinding sound coming from the hard disk (HDD) while I was using my PC. What I didn’t know then was that HDDs have an effective ‘shelf life’, after which their performance starts degrading. In my case, what appeared to be a mechanical failure very quickly led to the HDD ‘dying’ on me.
We just got a bit of good news that we’d like to share.
Google’s mission is “to organize the world’s information and make it universally accessible and useful.” And to fund this mission, it creates advertising that is “interesting” to you. That way you will click on more ads and generate more income for Google.
You’re probably signed into Google now. You may not remember when you did it or why, but when you’re signed in, every action you take is associated with your Google account. You don’t have to be signed in to use Google Search, News or Maps.
We’ll assume that if you’re still reading you’ve decided that you’re not giving up your Gmail and you don’t mind been logged into your Google account as you click around. You still can keep Google from using your history to induce you to buy more things.
If that’s the case, you have much bigger privacy problems than Google.
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ANNOYING: Facebook opts you into broadcasting your location through your friends
By Sandra
You know that you are sharing thing on Facebook. But if you privacy settings are “friends of friends” or “everyone”, your friends may be broadcasting your information into their friends’ feeds without even knowing it.
This means that if you start using Facebook Places and your friends comment on a location you check into, it could end up in your friend’s friends’ “Top News” feed.
Theoretically, your trip to Hooters three weeks could appear in a friend of a friend’s feed. And it could ruin any chance you might with an attractive friend of friend who saw your visit—and her friend’s comments cheering you on—come up in her Facebook Top News. Or your mom could comment on a picture from your birthday party and unintentionally share it with everyone in her feed—including all the cousins who weren’t invited.
And the worst part is that every time Facebook adds a new feature—like Facebook Places—it automatically opts you into broadcasting your activity through your friends.
This is not a huge privacy issue because Facebook is only sharing your info with the people you intended them to, “friends of friends”. But it is annoying. Sharing should be intentional.
The introduction of Facebook Places means that it isn’t just your words and media that are being broadcast. Now your physical location could be “newsworthy” to the friends of your friends.
How to stop your friends from broadcasting your information
Go to “Privacy Settings”. Find “Applications and Websites” and click on “Edit Your Settings”. Click on “Info accessible through your friends” and unclick “Places I check into” or anything else you’d rather only be shared intentionally.
How to stop Facebook from automatically opting you into sharing new features through friends
On the “Application, Games and Websites page” click “Turn off all platform applications.” This will also opt-you out of any application on Facebook. It also makes it unnecessary for you to determine what kind of information you want to share through your friends.
If you turn platform applications or add an application to your page, Facebook will opt you back into sharing everything except “Interested in and looking for” and “Religious and political views”. At least Facebook realizes that there are some things about you that you don’t want your friends broadcasting.
That’s how you prevent your shared information from being broadcast. For more information about Facebook safety, check out How to Save Face: 6 Tips for Safer Facebooking and the F-Secure Facebook page.
Cheers,
Sandra