A professor has revealed how your cute cat pics posted to social media could in fact allow stalkers to pinpoint your location.
Owen Mundy, an art professor at Florida State university, has created a website called "I know where your cat lives" to raise awareness of how people unwittingly give up their privacy online.
Opening as an exhibition in London next month, 'Big Bang Data' reveals the effect of the huge amount of data created by peoples' regular online activity.
Because location data is often added to images via a phone's camera or an app, details of where a photo has been taken within eight metres can be uncovered.
Mundy's website, which was launched last year, now has 5.3 million cat pictures pulled from social media and loaded into a Google Atlas map.