Likely refers to the quantity of entries in the file, in this case, 90,000 lines of data.
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
Suggests the leak includes accounts from educational institutions (universities or colleges), which are highly valued for accessing student discounts or academic research portals. Likely refers to the quantity of entries in
Indicates the list contains credentials specifically for logging into email accounts (IMAP/POP3/SMTP). in this case
If you have encountered this file name or are mentioned within such a leak, it indicates that your credentials have been compromised through a third-party breach.
Use services like Have I Been Pwned to see if your email address has appeared in known data breaches.