Often a signature or branding for the specific group or individual who compiled and shared the data. Security Implications
Immediately update passwords for sensitive accounts, especially those that share a password with the leaked email address. HQ #6MAIL ACCESS& EDU Access D90K #6DDARK .txt
Often used by leakers to claim the credentials are valid, fresh, or have a high "hit rate" for successful logins. Often a signature or branding for the specific
Likely refers to the quantity of entries in the file, in this case, 90,000 lines of data. in this case
Indicates the list contains credentials specifically for logging into email accounts (IMAP/POP3/SMTP).