This is what I found from the VIBE web page:
What is the Electronic Official Personnel Folder (eOPF) and how do I access my folder?
The eOPF is a comprehensive record of your personnel history with the Federal Government. It's easy to use and available 24 hours a day. Once you become employed by CBP, you'll receive an email message which will provide your User Identification number and temporary password along with instructions to access your folder.
What is the website for electronic Official Personnel Folder (eOPF)?
https://eopf.nbc.gov/dhs/ or https://eopf.nbc.gov/dhs/Logon.aspx
Remeber to use "CAPS" on your ID eOPF. In this web site you can request a new password.
The helpdesk email and phone: firstname.lastname@example.org | (866) 275-8518
If this doesn't work then you must contact your Mission Support Specialist and request a new ID package for eopf.