On February 8, OpenAI said it is investigating a hacker that claimed to have stolen login credentials from the AI ​​company's 20 million user accounts and sold it on a dark web forum. The intruder of the pseudonym posted a mysterious message in Russian, which said in the ad that it "provides access codes for more than 20 million OpenAI accounts" and called it a "gold mine" and also provided potential buyers with allegedly including Sample data of email address and password. It is reported that the complete data set is being sold for "only a few dollars". If this incident is true, it will be the third major security incident that OpenAI has encountered since ChatGPT released it to the public. This time, though, security researchers are not even sure if a hack actually occurred. An OpenAI spokesperson responded, "We take these allegations seriously and so far we have seen no evidence that this is related to the leak of the OpenAI system."