LinkedIn users passwords of the most famous business social network LinkedIn have been stolen and leaked on Internet. The company, through it blog, has confirmed the event declaring that more than six million passwords were compromised. LinkedIn is considered a mine of information related to business and government personnel that include a huge quantity of confidential data on more than 160 million members. The data breach has been made public when a user has posted on a Russian forum, specializes in hash cracking, a message that claims that he hacked and uploaded almost 6.5 million LinkedIn passwords.”]