Brave Disabled a Chrome Extension Linked to Facebook Users

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Last week, security analyst Zach Edwards stated how Brave had restricted the L.O.C. Chrome extension citing concerns it leaked the user’s Facebook information to the third server without warning or authorization prompt. An access token used by L.O.C. was obtained easily from Facebook’s Creator Studio online app. After retrieving this token — a text thread made up of 192 alphanumeric characters – from the apps, the chrome extensions can use it with Facebook’s Graph API to get data about the signed-in user without being a Facebook-approved third-party app. 
The concern is whether this type of data access could be exploited. Without the user’s knowledge, an extension using this token could, copy the user’s file and transmit it to a remote server. It might also save the user’s name and email address and use it to track them across websites. According to a Brave official, the business is working with the programmer to make certain changes — most likely an alert or permission prompt – to ensure the extension is appropriate in terms of privacy and security. 
In September 2018, Facebook announced a security breach impacting nearly 50 million profiles, it blamed criminals for stealing access tokens supplied by its “View As” function, allowing users to see how the profiles appear to others.” They were able to steal Facebook access tokens, which subsequently used to take over people’s accounts,” said Guy Rosen, Meta’s VP of Integrity.
Cambridge Analytica accessed people’s Facebook profiles using a third-par

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