| 2026-07-03 | Former Medicare IDs |
| 2026-06-14 | Old Medicare IDs |
| 2026-02-25 | Tax IDs |
| 2025-12-16 | Govt. IDs |
| 2025-12-07 | Taxpayer IDs |
| 2025-09-02 | IDs on W-2s |
| 2025-08-31 | Figs. most people have memorized |
| 2025-08-25 | Govt.-issued identifiers |
| 2025-08-18 | Employee IDs |
| 2025-07-27 | Identity thief's acquisitions, in brief |
| 2025-07-14 | Strings of digits to keep secret, in brief |
| 2025-06-24 | Figs. for which you often give just the last four digits |
| 2025-06-11 | Figs. with two dashes |
| 2025-06-07 | Phisher's collection, for short |
| 2025-05-12 | Strings with the pattern XXX-XX-XXXX, in brief |
| 2025-03-23 | IDs that will never start 000 or 666: Abbr. |
| 2025-02-24 | Nine-digit IDs |
| 2025-02-18 | Identity thieves' targets, for short |
| 2025-02-03 | IDs written on applications, for short |
| 2024-12-31 | Nine-digit government IDs |
| 2024-09-22 | Data sought in phishing attempts, in brief |
| 2024-05-30 | Doubly hyphenated IDs |
| 2024-04-16 | Frequently phished figs. |
| 2024-04-03 | IDs with multiple hyphens |
| 2023-12-19 | Tax form figs. |
| 2023-10-15 | Their first five parts are often disguised, for short |
| 2023-08-28 | Figs. for tax filers |
| 2023-08-03 | IDs since the Great Depression, in brief |
| 2023-05-08 | Govt. IDs |
| 2023-04-16 | Nine-digit IDs |
| 2023-02-06 | Tax IDs: Abbr. |
| 2022-11-27 | Figs. first issued in 1936 |
| 2022-10-06 | IDs since the Great Depression |
| 2022-09-05 | Tax IDs |
| 2022-05-08 | 1040 figs. |
| 2022-01-19 | Info collected by H.R. |
| 2022-01-07 | Figs. assigned randomly since 2011 |
| 2021-07-26 | Tax IDs |
| 2021-06-20 | Application figs. |
| 2021-06-17 | Info on tax forms |
| 2021-05-23 | Credit application figs. |
| 2021-03-16 | Some I.R.S. data, in brief |
| 2020-11-22 | Digital IDs |
| 2020-09-25 | Some sensitive info, for short |
| 2020-08-16 | IDs assigned at birth: Abbr. |
| 2020-02-12 | Entries on 1040s, for short |
| 2020-02-02 | 1040 figures, for short |
| 2019-11-27 | Payroll dept. IDs |
| 2019-11-12 | Figs. on tax forms |
| 2019-11-04 | Identifiers on tax returns: Abbr. |
| 2019-10-27 | W-2 IDs |
| 2019-10-06 | Certain IDs |
| 2019-08-29 | I.R.S. IDs |
| 2019-06-20 | Payroll dept. figs. |
| 2019-03-02 | I.R.S. figs. |
| 2019-02-17 | Some I.R.S. data, for short |
| 2019-02-12 | Some Form 1040 data, for short |
| 2019-02-08 | Joint acct. info |
| 2018-08-05 | Application figs. |
| 2018-03-10 | Hacking targets, for short |
| 2017-11-15 | Taxpayers' IDs |
| 2017-10-17 | IDs collected by H.R. |
| 2017-07-28 | Figs. in a 3-2-4 format |
| 2017-03-16 | IDs that are often not displayed in full: Abbr. |
| 2017-02-23 | Some personnel info: Abbr. |
| 2017-01-08 | Invoice figs. |
| 2016-04-04 | ID thieves' targets |
| 2016-03-31 | Govt. IDs |
| 2015-10-22 | Phishing targets, for short |
| 2014-12-03 | W-9 fields: Abbr. |
| 2014-11-29 | Payroll dept. info |
| 2014-10-29 | Payroll IDs |
| 2014-08-19 | Figs. with two hyphens |
| 2014-08-18 | I.R.S. IDs |
| 2014-04-12 | Phishing loot: Abbr. |
| 2013-11-09 | Job application info, for short |
| 2012-08-09 | Employee data: Abbr. |
| 2012-07-26 | Identity theft targets: Abbr. |
| 2011-11-12 | ID theft targets |
| 2011-08-27 | ID figures |
| 2011-04-20 | ID theft targets |
| 2011-01-17 | Nine-digit govt. IDs |
| 2011-01-01 | Strings used in payroll depts. |
| 2010-05-23 | Personnel IDs |
| 2010-04-25 | Payroll stub IDs |
| 2010-02-12 | Govt. database entries |
| 2010-01-19 | I.R.S. figures: Abbr. |
| 2009-12-20 | Some employment records: Abbr. |
| 2009-09-02 | Identity theft targets: Abbr. |
| 2009-08-20 | Payroll dept. figs. |
| 2009-04-12 | Some IDs: Abbr. |
| 2009-02-22 | Payroll IDs |
| 2009-02-20 | Hyphenated IDs |
| 2009-01-29 | I.R.S. data: Abbr. |
| 2008-11-06 | Dashed figs. |
| 2008-05-02 | I.R.S. data: Abbr. |
| 2008-04-26 | Hyphenated figs. |
| 2008-03-16 | Payroll dept. ID's |
| 2008-03-12 | Credit application figs. |
| 2007-10-17 | I.R.S. ID's |
| 2007-09-20 | Some personal data: Abbr. |
| 2007-05-20 | Info that may be phished: Abbr. |
| 2007-02-07 | Workers' ID's |
| 2007-01-06 | Some ID's |
| 2006-12-08 | Form data: Abbr. |
| 2006-10-13 | Figs. with two hyphens |
| 2006-09-10 | ID's with two hyphens |
| 2006-08-31 | Payroll dept. ID's |
| 2006-07-02 | Payroll dept. ID's |
| 2006-06-17 | Info put on some schedules: Abbr. |
| 2006-05-30 | Nine-digit ID's |
| 2006-01-27 | Figs. in bank records |
| 2006-01-14 | Figs. in identity theft |
| 2006-01-08 | Personal ID's |
| 2005-06-19 | ID's sought in phishing |
| 2005-03-17 | ID's for the I.R.S. |
| 2004-02-17 | Workers' ID's |
| 2002-06-12 | ID's for the I.R.S. |
| 2002-05-02 | I.R.S. ID's |
| 2002-03-24 | I.R.S. info |
| 1999-10-30 | Some ID's |
| 1999-10-14 | ID's, of sorts |
| 1999-08-08 | Workers need them: Abbr. |
| 1998-07-25 | Some ID's |
| 1998-07-17 | Nine-digit ID's |
| 1998-03-20 | ID's of a sort |
| 1997-03-06 | Employees' ID's: Abbr. |
| 1996-06-07 | Personnel data: Abbr. |
| 1996-01-13 | Personnel data: Abbr. |