Hackers have cloned the Android app of rapper Jay-Z and insert messages condemning the US government.
Cloned versions of the app that is available via unofficial sites, contain a code that unlocked anti-Obama messages on 4th July, BBC reported.
The attack is believed to be part of protests against US government surveillance programs revealed this month.
The official app is being used by the rapper as a way to promote his latest album - Magna Carta Holy Grail.
Security firm McAfee discovered the app on third-party Android app sites. In a blogpost.
McAfee researcher Irfan Asrar said that the program initially appeared to do everything that the official app did.
He explained that the cloned version copied and sent information to a command-and-control server every time the phone was re-started.
He added that once it made contact, the app tried to download extra code that included the anti-government images and messages.
