UK spy plane was tracked using a £2.99 app

[rcjordan]

Disclaimer: It's the Daily Mail. (But details look legit.)

A minute-by-minute record of the highly classified mission to study the Kaliningrad naval air base was watched by hundreds of thousands of people on the internet, and details were shared on Twitter.

http://www.dailymail.co.uk/news/article-4459044/Plane-spotters-2-99-app-expose-secret-UK-spy-plane.html