While reviewing security policies, a company's IT administrator realizes that they need to improve the way they protect confidential emails being sent outside the organization. What method should the administrator recommend to ensure both the confidentiality and integrity of the emails?
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Restrict email communications to internal servers only, barring all external communication.
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Schedule regular data backups of all email correspondence.
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Implement email encryption and require digital signatures.
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Enforce a policy of two-factor authentication for email account access.
Email encryption ensures that confidential information remains secure by converting the email content into cipher text. Digital signatures provide a method to check the integrity of the email, confirming that it has not been tampered with. Combining both encryption and digital signatures is the best way to secure email messages, ensuring confidentiality and integrity throughout transit. Regular data backups are crucial for recovery in the event of data loss but do not secure emails in transit. Two-factor authentication adds a layer of security for accessing email accounts but does not protect the contents of individual emails.
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