It doesn't matter if the user has the most careful privacy precautions in place which adds to the seriousness of the issue.
Miscreants are taking advantage of the same software in HTML5 that tells websites how much battery is left in a users' phone to track their moves. According to the research, the same technology that allows websites to help preserve battery life when the users' phone is running low on juice can be used to identify them as they sift through the internet.
The fact that websites don't require users' permission to view their phones' battery mark means every phone will respond to the request giving away information. All this is done without users' knowledge.
While using VPNs or going incognito may seem safe options to maintain your privacy, there's no way to get around the security problems in the battery software, says the study.
Best power banks for the Galaxy Note 8