Google Play store contains more than two thousands apps which are dangerous in a way that they may require suspicious permissions, few are malware and few are just duplicate of popular apps on play store.
This is found based on two years of study conducted by the University of Sydney and Data61 of CSIRO as co-venture and found that 2040 apps are fake or dangerous.
The study was based on 1 million apps available on the Google Play Store, they discovered few fake apps which require suspicious permission to access mobile data under some know titles like temple run.
The researchers used neural networks and machine learning to process 1 million apps and found 49,608 potential threats and found cases where the apps contain a similar description and even icons of 10,000 most popular apps.
We have compiled data below for other categories:
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Malicious Apps: 7,246
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App required sensitive permissions: 1565
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Third Party Ad Libraries: 1407
The apps found in this study are already removed by Google, And as per Google Team reports the rejection count for the new submission of apps are increased to 66% from 55% due to more restrictions implemented by Google.