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July 3, 2019 06:10 pm

File-Storage App 4shared Caught Serving Invisible Ads and Making Purchases Without Consent

With more than 100 million installs, file-sharing service 4shared is one of the most popular apps in the Android app store. But security researchers say the app is secretly displaying invisible ads and subscribes users to paid services, racking up charges without the user's knowledge -- or their permission -- collectively costing millions of dollars. From a report: "It all happens in the background... nothing appears on the screen," said Guy Krief, chief executive of London-based Upstream, which shared its research exclusively with TechCrunch. The researchers say the app contains suspicious third-party code that allowed the app to automate clicks and make fraudulent purchases. They said the component, built by Hong Kong-based Elephant Data, downloads code which is "directly responsible" for generating the automated clicks without the user's knowledge. The code also sets a cookie to determine if a device has previously been used to make a purchase, likely as a way to hide the activity.

Read more of this story at Slashdot.


Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/qdBa-WzKLlo/file-storage-app-4shared-caught-serving-invisible-ads-and-making-purchases-without-consent

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