Account security: Enter Employee ID, password, MFA codes, banking changes and other sensitive account information only inside the official LiteBlue USPS.gov portal.
The domain test
Read the hostname from right to left: the official LiteBlue host is liteblue.usps.gov. A domain such as liteblue-usps.example.com belongs to example.com, not USPS.
The credential test
Never type an Employee ID, password, PIN or MFA code into a third-party guide, calculator or support site.
The urgency test
Be skeptical of unexpected messages that threaten immediate account loss, payroll interruption or disciplinary consequences unless you click a link.
The support-call test
USPS warns that it will not call, text or email asking for a password or MFA code.
Frequently asked questions
Does HTTPS mean a LiteBlue site is official?
No. HTTPS protects the connection to a site; it does not prove the site is owned by USPS.
Where can suspicious activity be reported?
USPS lists CyberSafe@usps.gov and 866-877-7247 in its public guidance.
Official sources
Verify time-sensitive information with the current USPS source.
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