Parker-Hannifin Corporation
ent_019e5a1eccc18c4f917da62a91c47d87
Disclosures
7
State AG · 7 jurisdictions
Multi-filing incidents
1
incidents joining 2+ filings here
Max affected reported
99,238
nationwide · State AG OR
Leak-site claims
0
none in sample
Identity resolution
- Canonical name
- Parker-Hannifin Corporation
- Normalized
- parker hannifin— dedupe via name-norm; Microsoft / MSFT collapse to one row
- GLEIF LEI
- 5493002CONDB4N2HKI23
- SEC EDGAR CIK
- 0000076334
- Domain
- None on record
Disclosure history (7)newest first
- Washington State AGas victim2022-05-12
Parker-Hannifin Corporation reported unauthorized access to IT systems between March 11-14, 2022, detected on March 14, 2022. The incident affected 4,597 Washington residents, including current/former employees and dependents. Compromised data included names, SSNs, DOBs, driver's licenses, passport numbers, financial account info, and usernames/passwords. A small subset had PHI (claims, treatment info). Parker engaged forensic investigators, notified law enforcement, and offered 2 years of Experian identity protection.
- Oregon State AGas victim2022-05-12
Parker-Hannifin Corporation reported a data breach to the Oregon Attorney General. The breach was reported on 2022-05-12. The breach occurred during 3/11/2022 - 3/14/2022. The breach was discovered on 3/14/2022. 99,238 individuals were affected. Notice was sent on 5/12/2022.
- Montana State AGas victim2022-05-12
Parker-Hannifin Corporation notified Montana and other states of a March 2022 data breach. Unauthorized access occurred March 11-14, 2022. Affected data included names, SSNs, DOBs, driver's licenses, passport numbers, financial account info, and credentials for employees and affiliates. Health plan enrollment data was also potentially accessed. The company engaged forensic investigators, notified law enforcement, and offered two years of Experian IdentityWorks.
- California State AGas victim2022-05-12
Parker-Hannifin Corporation detected unusual activity on March 14, 2022, discovering that an unauthorized third party accessed its IT systems between March 11 and March 14, 2022. The attacker may have acquired files containing personal information of current and former employees, dependents, and affiliates, including SSNs, driver's license numbers, financial account details, and health insurance enrollment data. Parker shut down systems, engaged forensic investigators, notified law enforcement, and offered two years of identity protection services.
- South Carolina State AGas victim2022-05-12
Parker-Hannifin Corporation notified affected individuals of a data security incident where an unauthorized third party accessed IT systems between March 11-14, 2022. The incident exposed employee and affiliated individual data including SSNs, DOBs, driver's licenses, passport numbers, financial account info, and credentials. Health plan enrollment data was also potentially accessed. Parker engaged forensic investigators and law enforcement, and offered two years of Experian Identity Works.
- Massachusetts State AGas victim2022-05-12
Parker-Hannifin Corporation reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2022-05-12. 1,310 Massachusetts residents were affected. The report records the breach type as electronic.
- Illinois State AGas victim2022-01-01
PARKER-HANNIFIN CORPORATION filed a data-breach notice with the Illinois Attorney General during 2022 (case 2022-323). The register records the breach as discovered on March 14, 2022. Illinois does not publish the number of people affected — 815 ILCS 530/10 permits the Attorney General to publish only the entity name, the types of personal information and the date range.
Subsidiary disclosures (6)filed by group companies
◈ These filings were made by or about subsidiaries of Parker-Hannifin Corporation — not by Parker-Hannifin Corporation itself. Corporate relationships are mapped from GLEIF relationship records and SEC Exhibit 21 filings.
- California State AGvia Whittaker & Company2025-06-27
Whittaker & Company reported unauthorized access to its computer network between February 28 and March 13, 2025. An unauthorized actor obtained copies of certain documents containing personal information, including data of minors. The company engaged a cybersecurity firm, notified law enforcement, and offered one year of identity monitoring services through Kroll to affected individuals.
- Nebraska State AGvia Whittaker & Company2025-06-27
Whittaker & Company reported unauthorized access to its network between Feb 28 and Mar 13, 2025. The actor exfiltrated documents containing a Nebraska resident's name and SSN. The company discovered the breach on May 29, 2025, and mailed notification on June 27, 2025, offering one year of credit monitoring.
- Maine State AGvia Whittaker & Company2025-06-27
Whittaker & Company, a financial services firm, reported an external system breach (hacking) affecting one Maine resident. Unauthorized access occurred between Feb 28 and Mar 13, 2025. The breach exposed the resident's name and Social Security number. Notification was sent on June 27, 2025, offering one year of credit monitoring via Kroll.
- Massachusetts State AGvia Whittaker & Company2025-06-27
Whittaker & Company reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-06-27. 3 Massachusetts residents were affected.
- Indiana State AGvia Whittaker & Company2025-06-27
Whittaker & Company reported a data breach to the Indiana Attorney General. The breach occurred on 2025-02-28 and was reported on 2025-06-27. 3 Indiana residents were affected. 2,669 individuals affected in total.
- GLOBALLeak Sitevia Whittaker & Company2025-03-02
Whittaker & Company CPAs helps closely-held businesses and their owners solve immediate problems and plan for the future. You may be used to dealing with a ‘typical’ or ‘normal’ CPA firm...but that’s not us. We’re not merely accountants, or someone with a CPA license. We too run a family business, so we know the challenges and how it feels. We apply that knowledge and understanding to everything we do with you.The most important story to us is yours. What makes you tick? What frustrates you about the accounting industry, and how can we help you address that? We’re here to share our story with you, and listen to yours.- Database- Financial documents- Personal information of employees and clients https://www.whittakercpas.com/