Foreign media: Ao Bencong did not disclose the key defects of Bitcoin and Litecoin he claimed to be discovered on time.

On November 15, 2018, Oban was announced on Twitter that a year later, he would announce an unrecoverable key defect in Bitcoin and Litecoin, which would basically result in both coins being "dead." According to the tweet, the vulnerability is related to the launch of the SegWit upgrade for Bitcoin and Litecoin in 2017. But so far he has not spoken about it, and the good operation of Bitcoin and Litecoin means that its argument is just speculation.