DISCOVER FINANCIAL SERVICES
bd_66aa26f6f1f93d40 · schema v1 · pii pii-v1
Full breach record for DISCOVER FINANCIAL SERVICES →104 incidents on fileDiscover Financial Services notified Montana residents of a data breach caused by an internal error in its credit card mailing system. Between September 29 and November 15, 2020, physical cards were errantly mailed to incorrect customers. Affected data included names, account numbers, expiration dates, and security codes. Discover reissued cards, monitored accounts, and offered two years of Experian IdentityWorks.
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Incident timeline
Sep 29, 2020
Begins
Nov 17, 2020
Discovered
Dec 17, 2020
Filed
vs. sector median
4 wks faster
Linked disclosures
Why this link?Regulatory filings (5) · sorted by filing gap
- Massachusetts State AGbd_97741172ddfcf88c2020-12-17Candidate
- Maine State AGbd_d133b2ffaedef9682020-12-17Verified
- Indiana State AGbd_da55da9509cbe4b32020-12-17Verified
- Massachusetts State AGbd_ba723dff91b707d02020-12-04 · +13dCandidate
Show 1 more filing ↓Show fewer ↑up to 13d gap
- Massachusetts State AGbd_be18710e2724f7e42020-12-04 · +13dCandidate
Filing propagation · 6 filings · 4 states
View merged incident ↗Pattern: first filing Dec 4 (MA), last Dec 17 (MT) — a 13-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?
Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.