: Change passwords for accounts that were part of the leak. Use a Password Manager to ensure every site has a unique, complex password.
: Check your Gmail "Last Account Activity" (located at the bottom right of the inbox) to see if there are any suspicious IP addresses or locations logged in. 4. Ethical & Legal Note Download 650k Gmail txt
: This is the single most effective defense. Even if an attacker has the correct password, they cannot enter without the second factor (e.g., Google Authenticator, Yubikey, or SMS). : Change passwords for accounts that were part of the leak