Even if a file only contains email addresses, scammers use them to send highly personalized "spear-phishing" emails that look like legitimate Microsoft security alerts. How to Protect Your Hotmail Account
What to do if your email address is leaked - Microsoft Support Download 472k hotmail txt
Hackers use these lists of 472,000+ Hotmail accounts to see if the same passwords work on other sensitive sites like banking or social media. Even if a file only contains email addresses,