M&T Bank Corporation data breach (2020)

Breach window

Dec 17, 2019

When the intrusion reportedly occurred, per the linked filings

195 days

NEW YORKHHS OCRFirst filinglinked via same-victim cross-source · 100%

Filed Jun 29, 2020bd_59b62d24ea067302

M&T Bank reported to HHS on 2020-06-29 a Unauthorized Access/Disclosure affecting 5,878 individuals. Breached information located on Email. An employee was victim of a social engineering attack compromising PHI including names, addresses, financial/health insurance info, diagnoses, medications, SSNs, and driver's license numbers. The business associate implemented additional safeguards and retrained staff.

Affected (this filing): 5,878

HHS notified

🦬Montana State AGMost recentlinked via same-victim cross-source · 100%

Filed Jul 10, 2020bd_ea36eff90c5e5ed7

M&T Bank reported a data breach to the Montana Attorney General. The breach was reported on 2020-07-10. The breach occurred from 12/17/2019 to 4/30/2020. 2 Montana residents were affected.

Affected (this filing): 2

M&T BANK CORPORATION

Litigation Timing

Timeline