William S. Hein & Co., Inc.
bd_20b586eb6e799bfb · schema v1 · pii pii-v1
Full breach record for William S. Hein & Co., Inc. →Threat-actor claim — not a regulatory filing
This row is a claim by the ransomware group INC Ransom on its public extortion blog. It has not been validated by the victim or any regulator. Treat attribution and counts as the threat actor's assertion until a regulatory filing or victim disclosure corroborates them.
Source: Ransomware.live
Post text · scraped from the leak site
William S. Hein & Co., Inc. is a leading, family-run publishing company that has been serving the worldwide library community since the 1920s. Originally a renowned publisher of legal publications, the company has since expanded its services into academic, public, government, and corporate libraries, becoming a highly respected multidisciplinary publisher in multiple sectors. In the course of a successful cyber attack on this company, we have a large amount of confidential information at our disposal. More than 500GB. All financial documents, mail correspondence, agreements and contracts that are not subject to disclosure, personal data of employees. All this and much more will be published in case we do not come to an agreement.
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Incident timeline — mostly unverified
? — ?
Breach window unknown
Apr 17, 2024
Claim posted
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Corroborated · see linked filings
This record's own dates cannot anchor compliance clocks; see the linked filings.
Claim → filing
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Compliance clock
Not assessable
Linked disclosures
Why this link?Regulatory filings (3) · sorted by filing gap
- Maine State AGbd_957668d90579354e2025-01-13 · +271dCandidate
- Massachusetts State AGbd_dc8d0395f546be082025-01-13 · +271dVerified
- Maryland State AGbd_7376c74fbd07fb0d2025-11-13 · +575dVerified by operator
Filing propagation · 3 filings · 3 states
View merged incident ↗Pattern: first filing Jan 13 (ME), last Nov 13 (MD) — a 304-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.
Source ceiling
- actor name
- victim claim
- ransom/leak status
- discovery date
- materiality
- notification
- affected count
- confirmed data types
- compliance clock
The ✕ fields stay blank until a regulatory filing or victim disclosure lands.