Potentially Unwanted Applications (PUAs), classified as grayware, refer to programs installed in a mobile device or a computer that may pose high risk or have untoward impact on user security and/or privacy. It may also contribute in consuming computing resources. It may be unwanted by the user even if it is installed with users’ consent. Most often than not, PUAs do not explicitly and completely state their functions and purpose. The impact the app causes may either inadvertently or simply be a part of its design. PUAs are created by legitimate or illegitimate software publishers.
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