Foursquare's privacy loopholes

By | March 25, 2010, 10:52am PDT

Summary: Peril, you say? Before you play the social geolocation game, here are a few privacy issues to consider.

Foursquare and its geolocation game counterpart Gowalla were, from what I hear, all the rage at South By Southwest Interactive (SXSWi) this year. While I haven’t tried Gowalla — months ago they only had an iPhone app and I haven’t been interested in checking back — I am an avid Foursquare user, potentially to my own peril. Peril, you say? Of course. Any time you take to a social network you give up some of your privacy. This is especially true when using a social network that’s sole purpose is to tell your friends where you are at any given time.

While it’s true that the only way to ensure social network privacy is not to use social networks, there are still millions of people like me who flock to them every day for one reason or another. Specifically to Foursquare, there are a few items that I’ve written about before that deserve calling out after reports of mass lack of user awareness surfaced around SXSWi.

That said, Foursquare is a fun game and gaining points and earning badges is something that brings a smile to the faces of many Web geeks. However, don’t go in blind. Three things to consider:

I’m The Mayor

If you check into a venue more than any other person during a set period of time you become the “mayor” of said location. In busier metropolitan or Web-savvy areas, this usually means that you are at this location a lot because there’s so much check-in competition. While only your friends can see where you are at any given time, ANYONE who figures out your Foursquare user name can pull up your individual profile page and view the places of which you are mayor. This means, anyone smart enough might be able to figure out your most frequented hangouts and maybe even the times you are there (consider a bar, a dinner location, a gym, etc.). Combine this with information from Twitter (”going to my weekly girls night out!”) and who needs PleaseRobMe.com? A little patience and paying attention could eventually yield positive results for whichever creepy person is watching your profile.

I’m In The Room!

This is an issue I’ve been talkingwhining about for months now. One of the features of Foursquare is the ability to be seen on a list of “Who’s Here?” when checking into a venue. Lots of people have impromptu Foursquare meet-ups this way. Some people may not know that checking in puts them on this list, so I hope they are reading this blog post. In other words, I check in at my local Starbucks and settle in to do some work. Someone else — a stranger, perhaps — arrives not long after me and checks in. If I don’t have this setting disabled (thanks, Foursquare, for the foresight) then he or she will see “Jennifer L. is here” when they check in. If that person is intrusive, he or she might seek me out. Suddenly that person can reach my profile, figure out where else I hang out, and so on. Is it a stretch? Maybe. Though I do know of some people who have had this happen and then immediately changed their settings.

Next: And it gets creepier –>

Topics

Jennifer Leggio, aka "Mediaphyter," writes about the "social business" side of social media - including enterprise, security and reputation issues.

Disclosure

Jennifer Leggio

Jennifer is employed full-time with Fortinet, a leading network security appliance vendor. She is also actively involved in the network security community and works with the Security Bloggers Network. She co-manages the annual Security Bloggers Meet-UP at RSA Conference.

Jennifer is also involved with Silicon Valley Tweet-Up, a philanthropic networking event that brings people together to raise money for local family-oriented charities.

The blog posts here are solely her opinion and do not represent her employer or any other organization with which she may be affiliated.

Biography

Jennifer Leggio

Jennifer Leggio (@mediaphyter) has been a communications professional for more than 15 years, focusing primarily on enterprise technology and security. She is currently the director of strategic communications for a leading network security vendor. Jennifer is also passionate about all things social media, especially enterprise, security, privacy and reputation issues, which is why she writes about these things for ZDNet.

A well-connected communicator, Jennifer has led or supported interactive social networking efforts for security industry conferences including RSA Conference, Black Hat USA and SOURCE Conference, and founded the Security Twits, a community for network security professionals. She also helps run communications for the Security Bloggers Network.

Finally, Jennifer co-hosts the Quick'n'Dirty social media podcast with Aaron Strout, is a founding member of Technically Women, a communal blog project, and manages marketing and public relations for Silicon Valley Tweet-Up, a networking group that raises money for family-oriented charities. Jennifer was profiled in Silicon Valley San Jose Business Journal's "40 Under 40" edition, as a rising star for 2009.

Talkback Most Recent of 10 Talkback(s)

  • Well Written
    Nice article, I hope the respective companies pay attention...
    ZDNet Gravatar
    jnoble@...
    26th Mar 2010
  • RE: Foursquare's privacy loopholes
    @jnoble@... Everything in this post is so perfect~~! chanel shop chanel bag fake chanel bag
    ZDNet Gravatar
    just-do-it
    21st Sep
  • RE: Foursquare's privacy loopholes
    Very thoughtful piece! I don't buy into some of the exaggerated paranoia about social networks, but you point out some very reasonable and wise precautions. Thanks!
    ZDNet Gravatar
    Cheryl@...
    26th Mar 2010
  • RE: Foursquare's privacy loopholes
    This is a great post! While it's true that Foursquare has been incredibly useful to many businesses, it's extremely important that users not go in totally blind. You make some great points that beginners need to take into consideration before diving into the Foursquare pool!

    Tessa Carroll
    www.blogs.vbpoutsourcing.com
    ZDNet Gravatar
    TessaCarroll
    26th Mar 2010
  • RE: Foursquare's privacy loopholes
    This is an awesome post. I was at SXSWi with a colleague from CDT and we actually put together some videos poking fun at the location-enabled craze: http://www.cdt.org/blogs/adam-rosenberg/what-too-much-locational-data-sxsw-can-do
    ZDNet Gravatar
    adamcdt
    26th Mar 2010
  • RE: Foursquare's privacy loopholes
    Jennifer, this is an ongoing discussion, one that I wrote about a few weeks ago after a conversation with our joint friend and your co-host Aaron Strout. I know that men and women have different views on privacy, social sharing, especially location, and fear. However, I also believe that something that gets promoted a lot which is actually an urban myth and that is "stranger danger". Women are more likely to be stalked, attacked or subjected to harm by men they know than by strangers. So while privacy settings in Foursquare and other places are important. Let's not confuse the two subjects. Data privacy is one concern. Personal safety another. Promoting fear of living a normal engaged life doesn't help. Services like Foursquare can actually enhance personal safety and provide breadcrumbs for people to follow.
    Simon
    ZDNet Gravatar
    simonsalt
    26th Mar 2010
  • RE: Foursquare's privacy loopholes
    Good post, Jennifer. I discovered that third privacy loophole at SXSW, when I deliberately choose NOT to share my location publicly on Twitter in certain instances and yet still had my location "announced" when people I was connected with checked in at the same location later.

    I tweeted my concern to Dennis Crowley (@dens), who indicated this should *not* be happening and that he would look into it. But a message I left on his Facebook Wall a few days ago asking whether the problem had been addressed went unanswered.

    I have started using Gowalla in the last couple of weeks. Your fellow privacy/security comrade, Kyle Flaherty, suggests it has better privacy controls!

    Bryan Person | @BryanPerson
    ZDNet Gravatar
    BryanPerson
    26th Mar 2010
  • RE: Foursquare's privacy loopholes
    I like that you think. Thank you for share very much .
    ZDNet Gravatar
    KINGRPG
    28th Mar 2010
  • RE: Foursquare's privacy loopholes
    Very good points Jennifer. There is an extreme gap of
    knowledge and naivety happening with mainstream users in
    regards to the social web in general.

    The obvious and accidental breach of privacy happening in the scenarios your mentioning sound like a combination of
    features and social behaviors that companies like Foursquare
    were unable to predict previously. How they deal with it now
    will be the interesting thing.
    ZDNet Gravatar
    Adam Helweh
    29th Mar 2010
  • RE: Foursquare's privacy loopholes
    Here's a great little eBook on teaching teens how to use Foursquare responsibly http://parentesource.com/foursquare-ebook/
    ZDNet Gravatar
    PedroMarkenzy
    11th Jul

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