City of Keene, New Hampshire

The City of Keene, New Hampshire, experienced an inadvertent email disclosure on July 23, 2026, where an unredacted document containing names and Social Security numbers was sent to 43 New Hampshire residents. The City recalled the message, investigated, and confirmed the data exposure on July 29, 2026. Affected individuals were notified in late August 2026 and offered 12 months of identity monitoring.

Keene is a city in Cheshire County, New Hampshire, United States. The population was 23,409 at the 2010 census. It is the seat of Cheshire County. Keene is home to Keene State College and Antioch University New England and formerly hosted the state's annual Pumpkin Festival.

The City of Keene, NH notified residents of a data breach involving its third-party check processing vendor, Technology Management Resources, Inc. (TMR). An unauthorized individual accessed TMR's database from June 1 to July 1, 2020, viewing scanned check images containing names, addresses, and bank account/routing numbers for 4,360 NH residents and 732 organizations. The City offered credit monitoring services and advised victims to monitor accounts.

The City of Keene, New Hampshire, experienced an external system breach on June 1, 2020, discovered on August 26, 2020. The incident affected 5,521 individuals, compromising names and financial account or credit/debit card information, including security codes. Affected individuals were notified on November 11, 2020, and offered identity theft protection services through Experian.

City of Keene, New Hampshire reported a data breach to the Indiana Attorney General. The breach occurred on 2020-06-01 and was reported on 2020-11-11. 3 Indiana residents were affected. 5,521 individuals affected in total.

City of Keene, New Hampshire reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2020-11-09. 60 Massachusetts residents were affected. The report records the breach type as electronic.