: Suggests these are "logs" or "hits"—email addresses paired with passwords that have been verified to work.
: Stolen email access is used to send out thousands of spam or phishing emails from a "trusted" account to bypass junk filters. 275k Valid Mail Access-1ll.rar
: Use a legitimate service like Have I Been Pwned to see if your own email address has been included in a real data breach. Handling Unexpected or Suspicious Email Attachments : Suggests these are "logs" or "hits"—email addresses
: A compressed archive format used to hide the contents from basic antivirus scanners or to package large amounts of text data. How These Files Are Used 275k Valid Mail Access-1ll.rar