Here’s an interesting element of privacy you may not be aware of – smartphone cameras (at least iPhone cameras, anyway) can embed longitudinal and latitudinal data into photos, that can then be transmitted if you share those photos via Twitter or elsewhere (which, of course, means you’re unintentionally sharing your location whilst sharing your photo). This article explains how this all works and how you can turn the feature off…you know, if you care about controlling how you disclose your location or whatever (particularly relevant if the location is your own home)… [NY Times]

As we mentioned here last week, a federal court of appeals ruled that police could not use GPS to track a suspect’s movement without a warrant, or put another way, we all have a reasonable expectation of privacy in where we go and what we do (that precludes the government from intruding on our privacy without a warrant…more or less). But, did this opinion lay some of the groundwork for courts to consider check-ins, and if/when it does, will the fact that users voluntarily disclose their locations (as opposed to an illegally government-installed GPS device) mean we don’t have a reasonable expectation of privacy in our check ins? [TechFlash]

Well, I guess we can’t go more than a week or so without some type of Facebook privacy failure. This week, it’s a bug that lets anyone see a Facebook users name and picture via the Facebook login screen. Specifically, if you type in the wrong email address (or if you purposefully type in an email address not your own), the resulting error page will show you the person’s name and picture associated with that email address, assuming that email address is linked to a Facebook user (although it doesn’t have to be the users sign on email, as long as it’s an email listed somewhere in the user’s profile). Not like it reveals anything super personal, but it is a way to gather name/email data for Facebook users that could then be sold or maybe used in some other type of malicious way [ZD Net]

And finally, not much to say about it, but Apple released an iOS update yesterday to fix that PDF security hole exposed last week… [Mac Observer]