Many an ID thief's target

• Sensitive ID
• Certain ID info
• IRS info
• Nine-digit fig. on an IRS tax form
• Identity thief's pay dirt, briefly
• 1040 info
• 1040 digits: abbr
• Fig. on some shredded documents
• 123-45-6789, e.g.: Abbr.

Wikipedia Word definitions in Wikipedia
SSN may refer to: