Coverage description
An Insurance Services Office (ISO) standard form. It excludes umbrella coverage for bodily injury, property damage and personal and advertising injury arising from any access to or disclosure of confidential or personal material or information, including related notification, monitoring, data restoration and extortion costs.
How the form has changed
4 changes across 2 revisions, newest first. Each edition is compared with the one before it, using wording from filed copies.
12 23 edition
Dec 2023, compared with 12 20Latest editionThe endorsement no longer excludes loss of, damage to or inability to access or use electronic data. It now addresses only access to or disclosure of confidential or personal material or information.
12 20
“inability to access, or inability to manipulate electronic data”
12 23
Removed
The exclusion now reaches confidential material as well as information, and names biometric information among the examples.
12 20
Not in this edition
12 23
“Health information, biometric information”
The costs the exclusion still applies to now include identity monitoring, data restoration and extortion expenses.
12 20
Not in this edition
12 23
“data restoration expenses, extortion expenses”
12 20 edition
Dec 2020, compared with 05 14The electronic data part of the exclusion does not apply if valid underlying insurance for electronic data risks exists, and the umbrella then follows the terms of that underlying insurance.
05 14
Not in this edition
12 20
“Paragraph (2) does not apply if valid "underlying insurance" for the electronic data risks”
Editions
Edition dates as filed, newest first. Filing counts include every state submission that lists the edition.
| Edition | Filings | Companies | States | Filed |
|---|---|---|---|---|
| 12 23Dec 2023Latest | 173 | 45 | 48 | Feb 2023 to Sep 2026 |
| 12 20Dec 2020 | 51 | 41 | 20 | Nov 2021 to Aug 2026 |
| 05 14May 2014 | 9 | 10 | 5 | Jun 2022 to Mar 2025 |
1 other edition date appears in one or two filings each, often carrier-specific versions: 11 06.
Where filings record what this form replaced, they name earlier editions 05 14, 12 20 and other forms GMCU 7107. Only some filings record replacements.
What the filings show
- Edition in use: in the past 12 months, 13 companies filed the 12 23 edition and 1 company filed 12 20.
- CU 00 05 (Exclusion – Violation of Law Addressing Data Privacy) is filed alongside it most often, in 171 of the same filings (73%).
Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Sep 2026, excluding withdrawn and rejected filings. One filing can cover several affiliated companies.
Carriers filing this form
The 10 carrier groups with the most filings that include CU 21 86, out of 35 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| Insurance Services Office, Inc.Advisory Organization | 68 | 39 | 12 2312 20 | Jan 14, 2026 |
| THE Hanover Insurance Group7 group companies filed it, led by Massachusetts Bay Insurance Company and The Hanover Insurance Company | 32 | 31 | 12 2312 20 | Jun 19, 2024 |
| Farmers Insurance GroupTruck Insurance Exchange | 26 | 26 | 12 23 | May 16, 2024 |
| Grinnell Mutual GroupGrinnell Mutual Reinsurance Company | 19 | 10 | 12 2312 20 | Mar 26, 2024 |
| Nationwide Corporation Group3 group companies filed it, led by Nationwide Mutual Insurance Company and Nationwide Agribusiness Insurance Company | 18 | 12 | 12 2312 2005 14 | Jun 30, 2026 |
| Church Mutual GroupChurch Mutual Insurance Company, S.I. | 7 | 3 | 12 2305 1412 20 | Jun 26, 2026 |
| Tokio Marine Holdings Incorporated Group2 group companies filed it, led by Safety National Casualty Corporation and Philadelphia Indemnity Insurance Company | 7 | 4 | 12 2312 20 | Aug 11, 2026 |
| Iowa Farm Bureau Group2 group companies filed it, led by Farm Bureau Property and Casualty Insurance Company and Western Agricultural Insurance Company | 5 | 5 | 12 23 | Aug 14, 2026 |
| Sompo GroupSompo America Insurance Company | 5 | 1 | 12 2312 20 | Jun 15, 2026 |
| WR Berkley Corporation Group7 group companies filed it, led by Admiral Indemnity Company and Berkley National Insurance Company | 5 | 1 | 12 20 | Aug 4, 2026 |
How the largest insurers handle CU 21 86
Groups among the largest commercial umbrella and excess insurers that filed CU 21 86 or their own version in the past five years.
- Berkshire Hathaway GroupUses CU 21 86 in 1 filing
- WR Berkley Corporation GroupUses CU 21 86 in 3 filings
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States
Number of filings that include CU 21 86 in each state, Oct 2021 to Sep 2026. Darker states have more filings.
Often filed with
Standard-style form numbers that appear in the same filings most often.
- CU 00 05Exclusion – Violation of Law Addressing Data Privacy171 filings
- CU 21 88Exclusion - Access Or Disclosure Of Confidential Or Personal Material Or Information (Coverage B Only)143 filings
- CU 34 56Exclusion – Cyber Incident141 filings
- CU 34 55Exclusion - Electronic Data - Deletion Of Bodily Injury Exception128 filings
- CU 21 87Exclusion - Access Or Disclosure Of Confidential Or Personal Information and Data-Related Liability - Limited Bodily Injury Exception Not Included116 filings
- CU 04 02Loss Of Electronic Data Resulting From Physical Injury To Tangible Property Liability Coverage - Subject To Cyber Incident Exclusion115 filings
- CU 22 37Motor Carrier Endorsement114 filings
- CU 04 54Loss of Electronic Data Resulting From Physical Injury To Tangible Property Liability Coverage - Subject To Cyber Incident Exclusion - Deletion Of Bodily Injury Exception112 filings
- CU 04 98Cyber Incident Liability Coverage Subject To Each Cyber Incident Occurrence And Aggregate Limits93 filings
- CU 04 99Cyber Incident Liability Coverage And Loss Of Electronic Data Liability Coverage Subject To Loss Of Electronic Data, Each Cyber Incident Occurrence And Aggregate Limits93 filings
Recent filings
Latest filings that include this form number. Filed copies open in FilingFocus.
| Submitted | Company | State | Editions | Tracking number |
|---|---|---|---|---|
| Sep 10, 2026 | SECURA Insurance, A Mutual Company | IL | 12 23 | SEIC-135049056 |
| Aug 14, 2026 | Farm Bureau Property and Casualty Insurance Companyand 1 more | KS | 12 23 | FBLB-135001691 |
| Aug 14, 2026 | Farm Bureau Property and Casualty Insurance Companyand 1 more | NE | 12 23 | FBLB-135001697 |
| Aug 14, 2026 | Farm Bureau Property and Casualty Insurance Companyand 1 more | NM | 12 23 | FBLB-135001703 |
| Aug 14, 2026 | Farm Bureau Property and Casualty Insurance Companyand 1 more | UT | 12 23 | FBLB-135001708 |
| Aug 14, 2026 | Farm Bureau Property and Casualty Insurance Companyand 1 more | SD | 12 23 | FBLB-135001719 |
| Aug 11, 2026 | Philadelphia Indemnity Insurance Company | SC | 12 23 | PHLX-135041545 |
| Aug 4, 2026 | Intrepid Casualty Company | CA | 12 20 | BNIC-135042224 |
| Jun 30, 2026 | The Medical Protective Companyand 1 more | IL | 12 23 | MDPC-135002488 |
| Jun 30, 2026 | Crestbrook Insurance Companyand 1 more | CO | 12 23 | NWPP-135003098 |
| Jun 26, 2026 | Church Mutual Insurance Company, S.I. | CO | 12 23 | CHMU-134995025 |
| Jun 19, 2026 | Addison Insurance Companyand 1 more | CO | 12 23 | UNFG-134979875 |
Most filed ISO CU forms
- CU 34 54 Exclusion - Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS)
- CU 00 05 Exclusion - Violation of Law Addressing Data Privacy
- CU 34 56 Exclusion – Cyber Incident
- CU DS 01 Commercial Liability Umbrella Declarations
- CU 21 88 Exclusion - Access Or Disclosure Of Confidential Or Personal Material Or Information (Coverage B Only)
- CU 34 44 Broad Abuse or Molestation Exclusion
- CU 34 55 Exclusion - Electronic Data - Deletion Of Bodily Injury Exception
- CU 22 37 Motor Carrier Endorsement
- CU 21 87 Exclusion - Access Or Disclosure Of Confidential Or Personal Information and Data-Related Liability - Limited Bodily Injury Exception Not Included
- CU 04 02 Loss Of Electronic Data Resulting From Physical Injury To Tangible Property Liability Coverage - Subject To Cyber Incident Exclusion
- CU 04 54 Loss of Electronic Data Resulting From Physical Injury To Tangible Property Liability Coverage - Subject To Cyber Incident Exclusion - Deletion Of Bodily Injury Exception
- CU 00 01 Commercial Liability Umbrella Coverage Form
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