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Scraped data of 500 million LinkedIn users being sold online, 2 million records leaked as proof

Posted on April 20, 2022 by

An archive containing data purportedly scraped from 500 million LinkedIn profiles has been put for sale on a popular hacker forum, with another 2 million records leaked as a proof-of-concept sample by the post author.

The four leaked files contain information about the LinkedIn users whose data has been allegedly scraped by the threat actor, including their full names, email addresses, phone numbers, workplace information, and more.

While users on the hacker forum can view the leaked samples for about $2 worth of forum credits, the threat actor appears to be auctioning the much-larger 500 million user database for at least a 4-digit sum, presumably in bitcoin.

A statement from LinkedIn appears to confirm the latter: the company states that the data for sale was not acquired as a result of a data breach, and “is actually an aggregation of data from a number of websites and companies.”

LinkedIn facing a probe from Italy’s privacy watchdog

Following “the dissemination of user data, including IDs, full names, email addresses, telephone numbers” by the threat actor, Italy’s privacy watchdog began an investigation into the incident on Thursday.

The Italian authority said that the country has one of the highest LinkedIn subscriber counts among European states and called on affected users to “pay particular attention to any anomalies” related to their phone number and their account.

A new collection with 327M more LinkedIn profiles appears on hacker forum

It seems that other threat actors are looking to piggyback on the leak. On Friday, a new collection of LinkedIn databases has been put for sale on the same hacker forum by another user – for $7,000 worth of bitcoin.

The new author claims to be in possession of both the original 500-million database, as well as six additional archives that allegedly include 327 million scraped LinkedIn profiles:

If true, this would put the overall number of scraped profiles at 827 million, exceeding LinkedIn’s actual user base of 740+ million by more than 10%. This means that some, if not most, of the new data sold by the threat actor might be either duplicate or outdated.

What was leaked?

Based on the samples we saw from the leaked files, they appear to contain a variety of mostly professional information from LinkedIn profiles, including:

  • LinkedIn IDs
  • Full names
  • Email addresses
  • Phone numbers
  • Genders
  • Links to LinkedIn profiles
  • Links to other social media profiles
  • Professional titles and other work-related data

What’s the impact of the leak?

The data from the leaked files can be used by threat actors against LinkedIn users in multiple ways by:

  • Carrying out targeted phishing attacks.
  • Spamming 500 million emails and phone numbers.
  • Brute-forcing the passwords of LinkedIn profiles and email addresses.

Next steps

If you suspect that your LinkedIn profile data might have been scraped by threat actors, we recommend you:

  • Beware of suspicious LinkedIn messages and connection requests from strangers.
  • Change the password of your LinkedIn and email accounts.
  • Consider using a password manager to create strong passwords and store them securely.
  • Enable two-factor authentication (2FA) on all your online accounts.

Also, watch out for potential phishing emails and text messages. Again, don’t click on anything suspicious or respond to anyone you don’t know.

Original Post: LinkedIn Data Breach – 500M Records Leaked and Being Sold