According to the Android Security Annual report in the last year, Android significantly improved its machine learning and event correlation to detect potentially harmful behavior.
“We protected users from malware and other Potentially Harmful Apps (PHAs), checking over six billion installed applications per day. We protected users from network-based and on-device threats by scanning 400 million devices per day. And we protected hundreds of millions of Chrome users on Android from unsafe websites with Safe Browsing,” A spokesgoogle said trying to get some repetition on the phrase “we protected” just like Mr Goebbels suggested.
Google said that it had made it more difficult to get dodgy software into Google Play and last year’s enhancements reduced the probability of installing a PHA from Google Play by over 40 percent compared to 2014. Within Google Play, install attempts of most categories of malware declined including:
- Data Collection: decreased over 40% to 0.08% of installs
- Spyware: decreased 60% to 0.02% of installs
- Hostile Downloader: decreased 50% to 0.01% of installs
- Overall, dodgy software was installed on fewer than 0.15% of devices that only get apps from Google Play. About 0.5% of devices that install apps from both Play and other sources had a malware installed during 2015, similar to the data in last year’s report.
However, 2015 saw an increase in the number of PHA install attempts outside of Google Play something which Google thinks is a good thing because it disrupted several coordinated efforts to install malware onto user devices from outside of Google Play.
Android 6.0 Marshmallow, introducing a variety of new security protections and controls including full disk encryption is now a requirement for all new Marshmallow devices with adequate hardware capabilities and is also extended to allow encryption of data on SD cards.