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Risky business

Watch out for ‘third-party’ cyberthreats

Man works in shadowy data center
If one of the Postal Service’s “third-party partners” experienced a cyberthreat, USPS could be affected, too.

USPS wants employees and managers to remain vigilant and exercise caution when sharing postal information online with other organizations.

It’s often necessary to send information to “third-party partners” that work with the Postal Service to support its operations.

If one of these organizations experiences a cyberthreat, USPS could be affected, too.

To reduce such risks, the CyberSafe at USPS team offers these tips:

• Share only need-to-know data. Send information to third parties only when a data handling agreement is in place.

• Protect your inbox. All emails from external or non-USPS senders display [EXTERNAL] in the subject line. Report suspicious emails by selecting the “Report to CyberSafe” button in Outlook.

• Send emails safely. When authorized to share sensitive information with third parties, use #sensitive# in the subject line.

• Transfer large files securely. Use the Secure Large File Transfer application to send these files to third parties.

• Separate for security. Plug only USPS-approved devices into the postal network.

To report a cybersecurity incident, call 866-877-7247 or send an email to

The CyberSafe at USPS Blue and LiteBlue pages have additional information.

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