For the sake of grabbing market share , Samsung creates Knox , security software designed to fortify the Google OS and make it safe for the business world .
However , Knox has a weakness that can make user data at risk , as reported by GSMArena .
According to cyber security researchers at Ben Gurion University of the Negev in Israel , email and data communication on the Samsung is one of the data that is vulnerable to exploitation .
Hackers can record and " easy to interpret " the data that should be protected .
The worst part of the software flaw was the attacker is able to insert malicious code through the weak points that could endanger the entire system .
In response to this , Samsung has denied that the weakness is harmful and found that the handset does not have all the features tested Knox .
Samsung Galaxy S4 being considered for use by the U.S. Department of Defense , including internal use at the Pentagon .
If the handset is not considered safe , of course, the U.S. government would not consider using the smartphone , write GSMArena .