"I think that we will see in time a more clear guideline coming from Google in regards to ads," he said.
Adware commonly flagged by AV vendors include Airpush, Leadbolt, Airmob and Plankton, according to Zscaler. While the ads they display on a smartphone's home screen may be annoying, they are not illegal.
Corporations with employees using their own devices for accessing networks can protect themselves from data leakage through a number of mobile security tools, included device management and AV products.
"For sensitive entities (such as government agencies), there may be some concern here, but in general this is more of an end user problem," said Michael Sutton, vice president of security research at Zscaler.
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