| 1040 datum: Abbr. | 17 |
| 078-05-1120, on a Woolworth's sample wallet insert: Abbr. | 61 |
| 001-01-0001, for Grace D. Owen of Concord, N.H. | 47 |
| IRS IDs | 7 |
| Form data (abbr.) | 17 |
| Nine-digit IDs | 14 |
| Payroll IDs | 11 |
| 1040 IDs | 8 |
| Three-part figs. | 16 |
| IRS data | 8 |
| Hyphenated IDs | 14 |
| Form 1040 IDs | 13 |
| Workers' IDs | 16 |
| Worker IDs | 10 |
| W-2 IDs | 7 |
| Tax-form IDs | 12 |
| Tax return nos. | 15 |
| Tax form IDs | 12 |
| Some ID's | 13 |
| Data on IRS forms | 17 |
| Taxpayer IDs | 12 |
| Payroll dept. IDs | 17 |
| Payroll dept. ID's | 22 |
| IRS form entries | 16 |
| IDs sought by phishers | 22 |
| ID theft targets | 16 |
| Federal IDs | 11 |
| Employee IDs | 12 |
| Bank acct. IDs | 14 |
| 9-digit IDs | 11 |
| Workers' ID's | 21 |
| Workers need them (Abbr.) | 25 |
| Three-part nos. | 15 |
| They have nine digits and two hyphens, briefly | 46 |
| The IRS requires them | 21 |
| Tax return IDs | 14 |
| Some paycheck IDs | 17 |
| Some employee data, for short | 29 |
| Personnel IDs | 13 |
| Payroll dept. data | 18 |
| Nine-digit ID's | 19 |
| Job application nos. | 20 |
| IRS identifiers | 15 |
| Info on IDs | 11 |
| IDs often verified by the last 4 digits | 39 |
| IDs often used in identity theft | 32 |
| IDs of a sort | 13 |
| Identity theft targets: Abbr. | 29 |
| ID's used in identity theft | 31 |
| ID's for the I.R.S. | 23 |
| ID nos. | 7 |
| I.R.S. ID's | 15 |
| I.R.S. data: Abbr. | 18 |
| Hyphenated figs. | 16 |
| HR dept. data | 13 |
| Govt.-issued IDs | 16 |
| Govt. nos. | 10 |
| Figs. with two hyphens | 22 |
| Figs. on blue cards | 19 |
| Fed. retirement IDs | 19 |
| 1040EZ IDs | 10 |
| Workers need them: Abbr. | 24 |
| Work IDs | 8 |
| They were first issued in Nov. 1936 | 35 |
| They never begin with 666: Abbr. | 32 |
| They have two dashes: Abbr. | 27 |
| They have only nine digits (Abbr.) | 34 |
| Their first parts are geog. indicators | 38 |
| Taxpayers' IDs | 18 |
| Taxpayer ID's | 17 |
| Targets of phishing (abbr.) | 27 |
| Strings used in payroll depts. | 30 |
| Some personal data: Abbr. | 25 |
| Some IDs: Abbr. | 15 |
| Some hyphenated IDs | 19 |
| Some hyphenated figs. | 21 |
| Some employment records: Abbr. | 30 |
| Some employee IDs | 17 |
| Sequences with two dashes: Abbr. | 32 |
| Returns data: Abbr. | 19 |
| Return nos. | 11 |
| Phishing targets: Abbr. | 23 |
| Phishing targets (abbr.) | 24 |
| Phishing loot: Abbr. | 20 |
| Phisher's acquisitions, for short | 37 |
| Phished-for figs. | 17 |
| Personnel IDs. | 14 |
| Personnel dept. IDs | 19 |
| Personnel data, briefly | 23 |
| Personal IDs | 12 |
| Personal ID's | 17 |
| Personal figs. | 14 |
| Payroll stub IDs | 16 |
| Payroll figs. | 13 |
| Payroll dept. figs. | 19 |
| Payroll department IDs | 22 |
| Numerical IDs | 13 |
| Nos. divided by dashes | 22 |
| Nine-digit govt. IDs | 20 |
| Joint acct. info | 16 |