Android Least secure, Rim's Blackberry is most secure Mobile OS

Increasing Number of samrtphones have also increased Chances of malware attacks on mobile Phones. Cybercriminals are sneaking a fast-increasing amount of malware into smartphones to steal data or even money, with those running on Google's Android most exposed to security threats. All Security depends on you Smartphones OS.
Android an Google Mobile OS it one of the most selling Mobile OS now a day. Any person can design and run the application on Android so its best quality is its weakest point. According to survey
In 2010, just 11,138 mobile malware samples were recorded, but they soared 155 percent to 28,472 in 2011,  Just under half -- 46.7 percent -- occurred on Android phones,



Android's security model basically says, it is the responsibility of the end user to judge if an application is secure.
but this is a lot of expectation form the user.Who is not able to understand if a vendor is legitimate?

Some criminals are hiding "malicious code in legitimate applications" that consumers are downloading unwittingly. Once they have gained access to data on the phone, they are stealing information that could be used in identity theft or in illegal transactions.
 Apple's ios is also smae as Android but the main difference is:Anyone can create or install an application on an Android phone, as opposed to the Apple controlled Appstore which imposes a layer of screening.
 And Survey finded out that
RIM's Blackbery is the most secure Mobile OS and After that IOS and then At last comes the Android.
And Major problem with the Mobile phones is that they are directly connected to the money in Sim unlikely in PC's. if Criminals are able, for instance, to implant so-called trojan horses that prompt phones to send SMSes to premium numbers Then that can cost you a lot.
So next time when you instal any application you Should Check if the Provider is Trust-able Or not.