Harmony “erroneously” minted 150 million ONE tokens in December last year due to a protocol bug.

According to Aaron Li, a part-time developer of the public chain project Harmony, Harmony has a bug in the pledge contract that may cause the ONE token to depreciate to the point of being worthless. This bug has caused some pledge users to receive an additional 150 million ONE tokens, worth approximately A total of US$2.2 million. Aaron Li said that he discovered and reported the bug on December 7 last year, adding that the vulnerability had deposited incorrectly minted ONE tokens into 79 accounts, including his own, while the Harmony team reported it when the report was released. There was no positive response to this vulnerability within 5 days, causing the problem to continue to expand. Eventually Aaron Li decided to investigate the issue himself and found a temporary solution on December 12. Harmony software engineer Casey Gardiner accused Aaron Li of “failing to report the vulnerability in a timely manner” and selling ONE tokens during the vulnerability. Aaron Li revealed that he received more than 51 million incorrectly minted ONE tokens, and he sold 16.4 million between December 8 and 10, which were worth more than $260,000 at the time, but he insisted that he made no profit.