Cybercriminals can take advantage of human weaknesses in one place and use them in other places where they can get financial or other gains. Email addresses, real names, real addresses, phone numbers, date of birth, etc., all are valuable information for cybercriminals. They can build their database with this personal information and use them in future attacks. This is why practicing good cybersecurity habits as users and as administrators is critical for all of us for all systems we use.