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LinkedIn is a business-oriented social networking service. Founded in December 2002 and launched on May 5, 2003,it is mainly used for professional networking. In 2006, LinkedIn increased to 20 million members.As of June 2013, LinkedIn reports more than 259 million acquired users in more than 200 countries and territories.
Logo of LinkedIn

Security and technology

In June 2012, cryptographic hashes of approximately 6.4 million LinkedIn user passwords were stolen by hackers who then published the stolen hashes online.This action is known as the 2012 LinkedIn hack. In response to the incident, LinkedIn asked its users to change their passwords. Security experts criticized LinkedIn for not salting their password file, and instead using a single iteration of SHA-1.

On May 31, 2013 LinkedIn added two-factor authentication, an important security enhancement for preventing hackers from gaining access to accounts.

To handle the large volume of emails sent to its users every day with notifications for messages, profile views, important happenings in their network, and other things, LinkedIn uses the Momentum email platform from Message Systems.

 

 

 

 

Type Public
Traded as NYSE:LNKD
Founded Mountain View, California (2003)
Headquarters Mountain View, California, U.S.
Areaserved Worldwide
Founder(s) Reid Hoffman
Allen Blue
Konstantin Guericke
Eric Ly
Jean-Luc Vaillant
Keypeople

Reid Hoffman (Chairman)
Jeff Weiner (CEO)

 

Reid Hoffman (Chairman)
Jeff Weiner (CEO)

 

 

 

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