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Security flaw affects 99 percent of Android phones: report

A security research firm discovered a software flaw that it says has gone unnoticed for years.

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An Android display at the Google Input/Output conference in San Francisco during which Google showcased the latest mobile devices running on its Android software.
Security research firm Bluebox recently announced that a flaw in the Android software left 99 percent of Android phones vulnerable to malware attacks.

Paul Sakuma/ AP Photo/ File

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A security research firm discovered a flaw in Android phone operating system that would allow hackers to modify a regular application into a malicious one completely undetected by smart phone users, the app seller, or the service provider.

According to Bluebox Security, the scope of the problem is enormous: It affects 99 percent of Android users.

This security flaw allows hackers to modify a smart phone application's package file, or APK code, without breaking the app’s cryptographic signature, according to the Bluebox report. Applications are usually recognized by their digital signatures, or cryptographic code, but this recently discovered security glitch revealed that the app’s contents could be changed without changing its cryptography.

 

These types of nefarious applications are referred to as “Trojans," and they work in a way that the literary allusion implies: Users think they are getting an app, but unbeknownst to them, the app is filed with destructive capabilities. 

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