I am writing this quick post to share what I think is a problematic new behavior of Offline Mode in MySQL 9. Basically, the new default behavior in MySQL 9 is to write the username of the user which set offline_mode to ON. I think this behavior has not been considered from a security point of view because it leaks a root username in the error message presented to the users. My| J-F Gagné's MySQL Blog
Picture this: You’re commuting on the subway, soaring high in the clouds, or hiking in the mountains without internet coverage....| Inoreader Blog