Collection #1 is the biggest data breach with about 773 Million Records, your email and password could be compromise.
Go to https://haveibeenpwned.com
Type your email address, and click “pwned?” button
If you read the green message “Good News – no pwnage found” goto the next step to check your password
If you read the red message “Oh no – pwned”, don’t panic,this means your email address was affected in this data breach, it’s time to check your password
Go to https://haveibeenpwned.com/Passwords or click the option “Password” in the top menu
Type your password, and click “pwned?” button
If you read the green message “Good News – no pwnage found” this means you password wasn't compromise.
If you read the red message “Oh no – pwned”, don’t panic,but act as soon as you can. this means your password was affected in this data breach,and you MUST change your password ASAP, if you are using this password with any other account please go and change your password.
YOU DON'T NEED TO BUY OR SUBSCRIBE ANY SERVICES FROM "HAVEIBEENPWNED.COM", USE THIS SITE FOR INFORMATION ONLY.
Remember, never ever use the affected password in the future.