LinkedIn suggested users to uninstall the free plug-in.
The email addresses associated with any LinkedIn account can easily be exposed by the Sell Hack web browser add-on tool.
Offered as a free extension to the Chrome browser, when installed, the new plug-in will pop up a ‘hack in’ button on LinkedIn profiles and further allows viewing email address regardless of whether or not being connected to that individual.
Upon receiving reports about the plug-in, LinkedIn has suggested its users to uninstall the free plug-in and assured to do everything in its power to fold up the service.
A LinkedIn spokesperson told BBC: "We are doing everything we can to shut Sell Hack down. On 31 March LinkedIn’s legal team delivered Sell Hack a cease-and-desist letter as a result of several violations.
"LinkedIn members who downloaded Sell Hack should uninstall it immediately and contact Sell Hack requesting that their data be deleted," the spokesman added.
Acknowledging LinkedIn’s cease and desist request, developers of Sell Hack have temporarily deactivated the plug-in while tweaking it to obey the rules of the social media platform’s terms of service.
"SellHack plugin no longer works on LinkedIn pages," developers stated.
"We only processed publicly visible data from LinkedIn based on your profile permissions…all of which has been deleted.
"We are building a better product that does not conflict with LinkedIn’s TOS."