AMPHASTAR PHARMACEUTICALS, INC.
bd_5654d1eb160e5890 · schema v1 · pii pii-v1
Full breach record for AMPHASTAR PHARMACEUTICALS, INC. →Amphastar Pharmaceuticals notified Montana residents of a data breach stemming from a May 2, 2020 ransomware attack. Unauthorized access resulted in the posting of legacy data containing names and Social Security Numbers on the internet on July 21, 2020. The incident was discovered on July 24, 2020. The company engaged forensic specialists, restored systems from backups, and offered 24 months of credit monitoring.
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Incident timeline
May 2, 2020
Begins
Jul 24, 2020
Discovered
Aug 28, 2020
Filed
vs. sector median
7 wks faster
Linked disclosures
Why this link?Regulatory filings (5) · sorted by filing gap
- Indiana State AGbd_812277cc90f491992020-08-28Verified
- California State AGbd_957593d2996495b82020-08-28Verified
- New Hampshire State AGbd_e05f6f103c7421ea2020-08-28Verified
- Massachusetts State AGbd_db02337c0ddf020c2020-09-02 · +5dVerified
Show 1 more filing ↓Show fewer ↑up to 7d gap
- New Hampshire State AGbd_27570794a1d6ad652020-09-04 · +7dCandidate
Filing propagation · 6 filings · 5 states
View merged incident ↗Pattern: first filing Aug 28 (IN), last Sep 4 (NH) — a 7-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.