The security agency recommended that the exchange change the BCH's large amount of confirmation to 18 and above as soon as possible.

On the previously BCH network address qqq9v3hhl0vga8w5cts6dx5aa8xep2v2ssvppp5xcn, at block height 606283 to block height 606304 (within 1 hour), 21 blocks were found, and Beijing Chainan said that it was confirmed. In fact, what is more serious is that the address has been continuously excavated from 606,229 to 606,234 six consecutive blocks, combined with its mining performance today, which means that the current BCH network 6 confirmation has been extremely insecure. Therefore, we recommend that the exchange change the BCH's large amount of confirmation to 18 or higher as soon as possible.