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Learn from Palo Alto’s Unit 42 experts the best way to hunt down threats and how to use automation to help.

Join Threatpost for “ Tips and Tactics for Better Threat Hunting ” - a LIVE event on Wed., June 30 at 2:00 PM ET in partnership with Palo Alto Networks. Users should secure their LinkedIn accounts by updating passwords and enabling two-factor authentication. “For example, such personalized phishing attacks with LinkedIn lures were used by the Golden Chickens group.” “It is not uncommon to see such data sets being used to send personalized phishing emails, extort ransom or earn money on the Dark Web – especially now that many hackers target job seekers on LinkedIn with bogus job offers, infecting them with a backdoor trojan,” Candid Wuest, Acronis vice president of cyber-protection research, said via email at the time of the first data-scraping incident. Sure, attackers could simply visit public profiles to target someone, but having so many records in one place could make it possible to automate targeted attacks using information about users’ jobs and gender, among other details.

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Then there are brute-force attacks to be concerned about: “Using email addresses provided in the records, hackers may attempt to access users’ accounts using various combinations of common password characters,” researchers warned.Īnd finally, the data could be a social-engineering goldmine. LinkedIn users could also be on the receiving end of email or telephone scams that trick them into sharing sensitive credentials or transferring large amounts of money.” It added, “expert hackers may still be able to track down sensitive data through just an email address. “With details such as email addresses and phone numbers made available to buyers online, LinkedIn individuals could become the target of spam campaigns, or worse still, victims of identity theft.” “The leaked information poses a threat to affected LinkedIn users,” according to Privacy Sharks. That’s not to say there aren’t serious security implications though. The good news is that credit-card data, private message contents and other sensitive information is not a part of the incident, from Privacy Shark’s analysis. There are are 200 million more records available in the collection this time around, so it’s probable that new data has been scraped and that it’s more than a rehash of the previous group of records, researchers added. “We employ a strict policy of not supporting sellers of stolen data and, therefore, have not purchased the leaked list to verify all of the records.” “This time around, we cannot be sure whether or not the records are a cumulation of data from previous breaches and public profiles, or whether the information is from private accounts,” according to Privacy Shark’s blog post, published Monday. Scraping data from LinkedIn is a violation of our Terms of Service and we are constantly working to ensure our members’ privacy is protected.” “This was not a LinkedIn data breach and our investigation has determined that no private LinkedIn member data was exposed.

“While we’re still investigating this issue, our initial analysis indicates that the dataset includes information scraped from LinkedIn as well as information obtained from other sources,” according to the company’s press statement.

It contained an “aggregation of data from a number of websites and companies” as well “publicly viewable member profile data,” LinkedIn said at the time.Īccording to LinkedIn, no breach of its networks has occurred this time, either: That was the engine behind the collection of 500 million LinkedIn records that went up for sale in April. It’s unclear what the origin of the data is – but the scraping of public profiles is a likely source.

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Privacy Sharks examined the free sample and saw that the records include full names, gender, email addresses, phone numbers and industry information. A new posting with 700 million LinkedIn records has appeared on a popular hacker forum, according to researchers.Īnalysts from Privacy Sharks stumbled across the data put up for sale on RaidForums by a hacker calling himself “GOD User TomLiner.” The advertisement, posted June 22, claims that 700 million records are included in the cache, and included a sample of 1 million records as “proof.”

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