Is one email address enough? The email account you use for online banking should not be the same one you use for social media. Or for personal correspondence, or online purchases, or dating apps. So, how many email addresses does a person need? In a recent Forbes article, BeyondTrust Chief Security Officer Morey Haber said four — each designated for a different part of your life.

Many companies monitor and archive employee email. Having two addresses – one for personal use and one for work – helps keep your private life private. A third email should be exclusively for sensitive accounts, like banking and financial apps that require authentication. Finally, a fourth email can be for online shopping and subscriptions.

If you share an email address with a spouse or partner, you should also have a  separate, individual account. In addition to reducing the risk of a widespread privacy- and security-breach, individual emails are often needed for secure, online document processing with multiple parties. Businesses are using services like DocuSign with increasing frequency for legal files, loan papers, trust documents, and more.

Managing several emails is not as difficult as it may sound, and the practice has multiple benefits, Haber pointed out.

“Modern applications can easily support multiple email addresses to separate correspondence,” he said. “Knowing what email should come into which category will help you avoid spam, phishing attacks or other types of compromised credential attacks that could lead to your identity being compromised.”

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