You want to reset the password for your Quarantine Portal account
Email Quarantine
To reset the password for you Quarantine Portal account
1. Go to https://xx.quarantine.symantec.com (Replace xx with eu or us, based on the provisioning)
2. Click on "Forgot your password?"
3. Enter the username and click on "Reset Password"
4. A password reset email will be sent to your email. Click on the link and reset the password for your account