The data, taken from 261 companies in the UK, suggests fraudsters are increasingly getting people's personal information from social media sites, figures from fraud prevention service Cifas suggest.
Cifas said Facebook, Twitter and LinkedIn had become a "hunting ground" for identity thieves.
It said there were more than 148,000 victims in the UK in 2015 compared with 94,500 in 2014.
Some personal details were found by hacking computers but increasingly fraudsters used social media to put together the pieces of someone's identity, the BBC quoted Cifas as saying.
It urged people to check their privacy settings and think carefully about what information they share online.
A report out earlier this year estimated the annual cost of fraud in the UK was 193 billion pounds - equal to nearly 3,000 pounds per head of population.
Simon Dukes, Cifas chief executive, said: "Fraudsters are opportunists. As banks and lenders have become more adept at detecting false identities, fraudsters have focused on stealing and using genuine people's details instead.
"The likes of Facebook, Twitter, LinkedIn and other online platforms are much more than just social media sites - they are now a hunting ground for identity thieves.
"We are urging people to check their privacy settings today and think twice about what they share. To a fraudster, the information we put online is a goldmine.
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