iMessage denial of service ‘prank’ spams users rapidly with messages, crashes iOS Messages app

Over the last couple of days, a group of iOS developers has been targeted with a series of rapid-fire texts sent over Apple’s iMessage system. The messages, likely transmitted via the OS X Messages app using a simple AppleScript, rapidly fill up the Messages app on iOS or the Mac with text, forcing a user to constantly clear both notifications and messages.
In some instances, the messages can be so large that they completely lock up the Messages app on iOS, constituting a ‘denial of service’ (DoS) attack of sorts, even though in this case they appear to be a prank. Obviously, if the messages are repeated an annoyingly large volume but don’t actually crash the app, they’re still limiting the use you’ll get out of the service. But if a string that’s complex enough to crash the app is sent through, that’s a more serious issue.
The attacks hit at least a half-dozen iOS developer and hacker community members that we know of now, and appear to have originated with a Twitter account involved in selling UDIDs, provisioning profiles and more that facilitate in the installation of pirated App Store apps which are re-signed and distributed. The information about the source of the attacks was shared by one of the victims, iOS jailbreak tool and app developer iH8sn0w.

By Matthew Panzarino

Source and read more:
http://thenextweb.com/apple/2013/03/29/imessage-denial-of-service-prank-spams-users-rapidly-with-messages-crashes-ios-messages-app/?fromcat=all

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