norm: blackstoneUSLEI 5299004LW4QWGZUB8Y96 · no CIKMax severity: Low

Canonical registry

BLACKSTONE INC.

ent_01a0f874f8a81faeba76431a91ed8360

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Disclosures

1

State AG · 1 jurisdiction

Multi-filing incidents

—

no multi-filing incident in sample

Max affected reported

17

as filed · State AG MA

Leak-site claims

0

none in sample

Identity resolution

Canonical name: BLACKSTONE INC.
Normalized: blackstone— dedupe via name-norm; Microsoft / MSFT collapse to one row
GLEIF LEI: 5299004LW4QWGZUB8Y96
SEC EDGAR CIK: None — not an SEC registrant
Domain: None on record

Disclosure history (1)newest first

Massachusetts State AGas victim2026-09-01
Blackstone Inc. experienced a cybersecurity incident on July 23, 2026, where an unauthorized party briefly accessed a small number of employee user accounts and obtained copies of files from cloud-based repositories. Personal information of some individuals was affected. Blackstone stopped the access, engaged outside experts, notified law enforcement, and is offering two years of identity monitoring via Kroll. The incident is contained.