Data Breach Index (A–Z) – H

Explore 100 data breaches in the H group. Open a record for exposed data classes, affected account counts and recommended security steps.

H

Habbo.st Alleged Data Exposure Hack Discussion Forum 2016 Data Breach Claim HackBase Alleged Data Exposure Hacker.org 2016 Data Breach Claim HackerNewbie 2022 Data Breach HackerOne Navia 2025 Data Breach hackforums.net Data Breach Hacking Team Data Breach Hacking.rs Forum 2014 Data Breach Claim Haijiao.com 2023 Data Breach Claim Hakko Corporation Data Breach Halliburton Data Breach Hallmark Data Breach Hanscom Federal Credit Union Data Breach Harbin Clinic / NRS 2024 Data Breach Harbor Ohio Data Breach Harbor Regional Center 2026 Data Breach Harvard University Data Breach: 850,784 Emails Haşema Textile Data Breach Hathway Data Breach HauteLook 2018 Data Breach Have Fun Teaching Data Breach Havenly Data Breach Hawking Technology 2016 Data Breach Claim HCA Healthcare Data Breach HCIactive Data Breach HDB Financial Services Data Breach HeadHunter (hh.ru) 2018 Associated Resume Dataset Health Now Networks Data Breach Health Payment Systems 2025 Data Breach Healthcare In Action 2026 Data Breach Healthcare Services Group Data Breach HealthEC 2023 Data Breach HealthEquity 2024 Data Breach Heart Care Centers of Illinois 2024 Data Breach Heart of America Eye Care 2026 Data Breach Heart South Cardiovascular Group Data Breach Heartland Health Center Data Breach HeatGames Data Breach Hello Cake Data Breach HelloWork (2025) Data Breach Hematology Oncology Consultants Data Breach Hemmakväll Data Breach hemmelig.com Data Breach Henry Rossi & Co. 2026 Data Breach Heritage Bank 2026 Data Breach Heroes of Gaia Data Breach Heroes of Newerth Data Breach Hertz 2024 Data Breach Hewlett Packard Enterprise (HPE) Data Breach Hexui 2016 Data Breach Claim HiAPK Alleged Data Exposure High Point Treatment Center 2025 Data Breach Hightower Advisors Data Breach: 131,483 People Affected Hilldun Data Breach Hillwood Development Company Data Breach (2026)Hims & Hers Zendesk 2026 Data Breach Hive Workshop Data Breach Hjedd Data Breach HKGolden Data Breach HLTV Data Breach HLY Aromaterapi (Alfheim Aromaterapi) Data Breach HMC Farms Data Breach Hollywood Stock Exchange (HSX) Data Breach - Verified Home Chef Data Breach Home Design 3D Data Breach HomeRefill Data Breach HongFire Data Breach Hookers.nl Data Breach Hopamedia Data Breach Hôpital Privé de la Loire Ramsay Santé Data Breach HopponWorks Alleged Data Exposure Horse & Hound Forum 2017 Associated Dataset Horse Isle Data Breach Horticultural News 2015 Data Breach Claim Hospital Caribbean Medical Center Data Breach Hospital Sírio-Libanês Data Breach Hostinger Data Breach HostSearch 2017 Data Breach Claim Hot Topic Data Breach Hotiç Data Breach HoundDawgs Data Breach Houston City College 2026 Data Breach Houzz Data Breach HSYS 2022 Public Health Data Breach Claim HTC Mania Data Breach HTH Studios Data Breach Hub4Tech Data Breach Hudson Valley Medical Billing & Credentialing 2026 Data Breach Hugging Face 2026 Security Breach HumanizerPro 2026 Dataset Hunter Associates Data Breach Hunter Health Clinic Data Breach HuntStand Data Breach Hurb Data Breach Husky Owners Data Breach Hypertherm Data Breach Misattributed Habib's Data Alleged Data Exposure The Halloween Spot Data Breach The Home Depot Data Breach