100,000 high-quality (HQ) email address and password combinations.
Use tools like Have I Been Pwned or the Avast Hack Check to see if your email has appeared in this or other documented leaks. 100K HQ MAIL ACCESS BASE BY Old_Deep 02-03-2023...
This type of database is highly valuable to cybercriminals because "mail access" provides more than just a login; it grants entry to the core of a user's digital identity. 100K HQ MAIL ACCESS BASE BY Old_Deep 02-03-2023...
Check for "Sent" items you didn't write or "Read" statuses on emails you haven't opened. 100K HQ MAIL ACCESS BASE BY Old_Deep 02-03-2023...
Once inside a mailbox, attackers can use the "Forgot Password" feature on other services to intercept reset codes and take over secondary accounts.
Change the password for the affected email account and any other accounts using the same or similar passwords.