Update: LinkedIn has released a statement claiming that it doesn't have an API that could return various types of data.
"Based on our current investigation, we've confirmed through sample analysis that several specific fields such as phone number, gender, inferred salary, and physical address in this data set did not come from LinkedIn," the company said.
A hacker forum user claimed to have the records of 700 million LinkedIn users for sale, according to a report by website Privacy Sharks.
The website said its researchers have viewed a sample of one million records from the seller, claiming that the sample includes information such as full names, phone numbers, email addresses, gender and industry information.