LinkedIn warns of Sell Hack browser tool that reveals email addresses

LinkedIn warns of Sell Hack browser tool that reveals email addresses: A browser extension called “Sell Hack” is creating something of a storm, after claiming it can reveal the hidden email addresses of LinkedIn users.

The tool, first spotted by Yahoo Tech columnist Alyssa Bereznak, initially gives the impression that it allows anyone to visit a LinkedIn profile page and “hack” into LinkedIn’s systems to extract the page owner’s (normally private and hidden) email address.

And all this power, it is claimed, is available to you by quickly installing a plugin for your Chrome, Safari or Firefox browser.