400M Twitter users' data is reportedly on sale in the black market

cointelegraph.com:

400 million Twitter users’ data containing private emails and linked phone numbers have reportedly been up for sale on the black market.

Cybercrime intelligence firm Hudson Rock highlighted a “credible threat” via Twitter on Dec. 24 in which someone is supposedly selling a private database containing contact information of 400 million Twitter user accounts. 

“The private database contains devastating amounts of information including emails and phone numbers of high profile users such as AOC, Kevin O'Leary, Vitalik Buterin & more,” Hudson Rock stated, before adding that:

Hudson Rock said that while it has not been able to fully verify the hacker’s claims given the number of accounts, it said that an “independent verification of the data itself appears to be legitimate.”

BREAKING: Hudson Rock discovered a credible threat actor is selling 400,000,000 Twitter users data.The private database contains devastating amounts of information including emails and phone numbers of high profile users such as AOC, Kevin O'Leary, Vitalik Buterin & more (1/2). pic.twitter.com/wQU5LLQeE1

Web3 security firm DeFiYield also had a look at 1,000 accounts given as a sample by the hacker and verified that the data is “real.” It also reached out to the hacker via Telegram and noted that they are actively waiting for a buyer there.

If found true, the breach could be a significant cause for concern for crypto Twitter users, particularly those who operate under a pseudonym.

However, some users have highlighted that such a large-scale breach is hard to believe, given that the current amount of active monthly users reportedly sits at around 450 million.

At the time of writing, the purported hacker still has a post up on Breached advertising the database