Gerson Lehrman Group

1 breachOther

Ransomware breachRansomware, data exposed not stated. Reported to the California AG.USMar 12, 2024

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Every breach here links to its sources and official notices. Across Glyph: lawsuits, incidents and outages.

source2026-09-25

Gerson Lehrman Group, 2024-03-12https://www.in.gov/attorneygeneral/consumer-protection-division/id-theft-prevention/files/DB-Year-to-Date-Reportdec-2024.pdf

source2026-09-25

Gerson Lehrman Group, 2024-03-12https://ago.vermont.gov/document/2024-03-12-gerson-lehrman-group-data-breach-notice-consumers

attack2026-09-25

Gerson Lehrman Group, 2024-03-12ransomware

discovered2026-09-25

Gerson Lehrman Group, 2024-03-122023-11-12

Added2026-09-25

Gerson Lehrman Group, 2024-03-12

Added2026-09-25

Gerson Lehrman Group