These "30K HQ" lists aren't usually from one single hack. They are compiled through: SpringerBriefs in Geography
These three services are high-priority targets because they offer immediate value to attackers: 30K HQ MAILACCESS GOOD (NETFLIX, ZALANDO, PAYPA...
"MailAccess" refers to having direct entry into a person’s email account (via IMAP/POP3 or webmail) rather than just a specific site login. In the world of account cracking, this is considered the "holy grail" because: These "30K HQ" lists aren't usually from one single hack
If someone has access to your email, they can trigger password resets for every other linked service. 30K HQ MAILACCESS GOOD (NETFLIX, ZALANDO, PAYPA...
Many services send two-factor authentication (2FA) codes or "unusual login" alerts to the email. An attacker with MailAccess can simply delete these alerts before you ever see them.