As we have written about in previous articles, Preview is a valuable tool in OS X that does not get a lot of press. In this article, we will review how you can use Preview to capture your signature using the iSight camera on a Mac, then use it in Pages documents, to sign PDF documents, and as an image in your signature in the Mail app.
Researchers from the Georgia Institute of Technology managed to get a malicious app approved by Apple and included in the App Store by using a ‘Jekyll & Hyde’ approach, where the behaviour of a benign app was remotely changed after it had been approved and installed.
It appeared to be a harmless app that Apple reviewers accepted into the iOS app store. They were later able to update the app to carry out a variety of malicious actions without triggering any security alarms. The app, which the researchers titled “Jekyll,” worked by taking the binary code that had already been digitally signed by Apple and rearranging it in a way that gave it new and malicious behaviors …
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