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Tuesday, 22 August 2017 11:14

AccuWeather iOS app sends info to data monetisation firm: claim Featured


A security researcher claims that the AccuWeather app for iOS leaks information to a third-party site, with GPS co-ordinates and router information among the data leaked.

Researcher Will Strafach detailed his findings in a post after about 36 hours of testing. He said that the app asked for location access in order to provide alerts about severe weather, critical updates and quicker start times.

But, he said, when location access was granted, the app sent precise GPS co-ordinates (including speed and altitude), the name and BSSID of the Wi-Fi router to which the iOS device was connected, and whether the device had bluetooth turned on.

Strafach pointed out that knowledge of the router could be used for geolocation through a number of online services.

The information was sent to, which he said was a data monetisation company. On its website, he found this: "We convert mobile location signals into high value audiences. You generate more mobile revenue, with or without ads."


The alert that appears when requesting access to GPS information on iOS. 

Strafach said RevealMobile said it had the capability to gain insight into where a user lives, works, and his or her frequented locations. 

He pointed to a case study where RevealMobile had provided this explanation:

"Our technology sits inside hundreds of apps across the United States. It turns the location data coming out of those apps into meaningful audience data. We listen for lat/long data and when a device 'bumps' into a Bluetooth beacon. The data shown on the following pages reflects 102,535 opted-in location sharing mobile devices that we saw at retail locations Friday, November 25th, 2016."

Strafach said similar leaking of data by another company, InMobi, had attracted the attention of the US Federal Trade Commission.

Graphics: courtesy Will Strafach

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Sam Varghese

Sam Varghese has been writing for iTWire since 2006, a year after the site came into existence. For nearly a decade thereafter, he wrote mostly about free and open source software, based on his own use of this genre of software. Since May 2016, he has been writing across many areas of technology. He has been a journalist for nearly 40 years in India (Indian Express and Deccan Herald), the UAE (Khaleej Times) and Australia (Daily Commercial News (now defunct) and The Age). His personal blog is titled Irregular Expression.

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