After reviewing the Top 10 Not So Common SSH Usernames and Passwords [1] published by Johannes 2 weeks ago, I noticed activity by one in his list that we don't really know what it is. Beginning 12 October 2024, my DShield sensor started storing one of the usernames mentioned in his diary that I had never seen before (I have over a year of data). The username chenzilong has been used with 5 different passwords including, some combination with the same username. So far, this account activity has been used with 302 different IPs.