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Geotagging

Geotagging – Where Cyberspace comes to your space Craig Valli & Peter Hannay secau – Security Research Centre. Geotagging. Where people use GPS services to provide locational data about themselves or objects This has been enabled by a combination of devices

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Geotagging

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  1. Geotagging – Where Cyberspace comes to your spaceCraig Valli & Peter Hannaysecau – Security Research Centre

  2. Geotagging • Where people use GPS services to provide locational data about themselves or objects • This has been enabled by a combination of devices • iphone, Android & Samsung phones • GPS enabled cameras

  3. Geotagging • Geotagging most commonly refers to the tagging of images with location data. • However the use of geotagging has been extended to include elements of objects on social media services such as Twitter & Flickr.

  4. Geotagging Images • Geotagging in images involves the insertion of location data in latitude & longitude format into an image file. • The location data is stored within the EXIF records for the image, tools such as ExifTool are able to extract this location data.

  5. Geotagging Social Media • Geotagging in social applications is achieved in much the same manner as that of images, however instead of tagging individual files, objects within a social media construct are tagged with geolocation data. • The geolocation data is harvested from media at the time of upload or provided by the client application at the time of submission. Two are Flickr and Twitter

  6. Twitter • Twitter is a micro-blogging service that allows its users to post 140 character status updates • The ability to tag posts with geolocation information was added in November of 2009 • Through the Twitter API there are a number of calls that exist to allow searching for posts • In this manner it is possible to profile users behaviours or identify users who frequent specific locations.

  7. Flickr • Flicker is a social photo sharing service, users are able to upload images to Flickr. These can then be viewed publicly or by a restricted group of people. • Geolocation support is present within Flickr and is achieved through the harvesting of geolocation data from the meta data of images as they are uploaded • API calls available to developers allow for searches to be performed based on location, user and many other parameters

  8. The Good • The identification of images taken at a specific location at a specific time, for example it would be possible to search for all flicker images taken during an assassination within a certain radius of the event, the resulting images may provide additional intelligence aiding an investigation. • Unwitting embedment of evidence

  9. The Bad • Loss of personal privacy and safety • Ability to be tracked...but then some people like this • How does a warrant that stipulates that a person must maintain physical distances hold in cyberspace.

  10. The Ugly • A obvious and sinister use for this technology is the ability for the predator to track its prey. • A cyber/stalkers dream to use to locate individuals of interest. Some of our common desktop tools allow this behaviour to prevail now. • You can now be unwittingly located by a simple photograph

  11. Recommendations • If you are concerned (and you should be) about your geolocation privacy then switch it off! • Be aware that photos that may be taken of you may contain locational data you do not want known. • Be careful of sharing photos within online services unless you have stripped out metadata

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