Parent’s Social Security Number
For nonmobile users, for an extra level of security, select the “Virtual Keyboard” icon and use your mouse to select the characters.
Enter your parent’s Social Security number (SSN) exactly as it appears on his or her Social Security card.
Enter the SSN without the dashes (for example, 123456789).
Note: An Individual Taxpayer Identification Number can’t be used in the parent’s SSN field.