Stagefright is the name of a massive vulnerability that affects more than 950 million Android devices. So far, Google, Samsung and LG have all confirmed they will roll out monthly security patches. Google has already taken steps to remove the flaw from Nexus devices, but that’s hardly relevant for anyone not owning a device that runs a pure version of Android. However, while you’re waiting for your fix to roll out, you can use a simple app that tells you if you’re affected by Stagefright.
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