Check if you have an account that has been compromised in a data breach.
Hackers routinely break into huge databases of corporations, websites, retailers and many other online environments.
They steal confidential information like names, phone numbers, address, passwords and more. From there a hacker may use your information to create identity theft or demand money from you. Or place the information for sale on hackers websites for multiple people to access.
If your email address has been compromised, change your password now.