Coverage description
An Insurance Services Office (ISO) standard form. It excludes injury or damage arising from access to or disclosure of confidential or personal material or information, including related notification, monitoring and other expenses, except coverage provided by controlling underlying insurance listed in the schedule.
How the form has changed
3 changes across 1 revision, newest first. Each edition is compared with the one before it, using wording from filed copies.
12 23 edition
Dec 2023, compared with 05 14Latest editionThe exclusion now applies to confidential or personal material, not only information.
05 14
Not in this edition
12 23
“confidential or personal material or information”
Biometric information is added to the examples of excluded information.
05 14
Not in this edition
12 23
“Health information, biometric information”
The list of excluded expenses now includes identity monitoring, data restoration and extortion expenses.
05 14
“claimed for notification costs, credit monitoring”
12 23
“data restoration expenses, extortion expenses”
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 | 93 | 18 | 46 | Feb 2023 to Jun 2026 |
| 05 14May 2014 | 29 | 23 | 6 | Dec 2021 to Jun 2025 |
Where filings record what this form replaced, they name earlier edition 05 14. Only some filings record replacements.
What the filings show
- Edition in use: in the past 12 months, 4 companies filed the 12 23 edition.
- CX 34 03 (Exclusion - Cyber Incident) is filed alongside it most often, in 91 of the same filings (75%).
Filed under
Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Jun 2026, excluding withdrawn and rejected filings.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 CX 21 43, out of 24 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| THE Hanover Insurance Group4 group companies filed it, led by The Hanover Insurance Company and Allmerica Financial Benefit Insurance Company | 40 | 37 | 12 23 | Jun 23, 2026 |
| Insurance Services Office, Inc.Advisory Organization | 39 | 39 | 12 23 | Nov 3, 2023 |
| Sompo GroupSompo America Insurance Company | 5 | 1 | 12 2305 14 | Jun 15, 2026 |
| Tokio Marine Holdings Incorporated GroupSafety National Casualty Corporation | 5 | 1 | 12 2305 14 | Feb 17, 2026 |
| ACP Insurance Mgmt LLC GroupAccelerant National Insurance Company | 4 | 3 | 05 14 | May 13, 2024 |
| Church Mutual GroupChurch Mutual Insurance Company, S.I. | 4 | 3 | 05 1412 23 | Aug 27, 2025 |
| OLD Republic GroupOld Republic Insurance Company | 4 | 1 | 05 14 | Jun 30, 2025 |
| Amtrust Financial Services Group7 group companies filed it, led by AmTrust Insurance Company of Kansas, Inc. and CorePointe Insurance Company | 2 | 1 | 12 23 | Aug 8, 2023 |
| Farm Bureau GroupWestern Community Insurance Company | 2 | 2 | 12 23 | Mar 6, 2025 |
| LIO Holdings Company GroupLIO Insurance Company | 2 | 2 | 05 14 | Jul 27, 2023 |
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States
Number of filings that include CX 21 43 in each state, Oct 2021 to Jun 2026. Darker states have more filings.
Often filed with
Standard-style form numbers that appear in the same filings most often.
- CX 34 03Exclusion - Cyber Incident91 filings
- CX 24 32Noncontributory And Order Of Response – Other Insurance Condition88 filings
- CU 04 02Loss Of Electronic Data Resulting From Physical Injury To Tangible Property Liability Coverage - Subject To Cyber Incident Exclusion61 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 Exception61 filings
- CU 21 86Exclusion – Access Or Disclosure Of Confidential Or Personal Material Or Information60 filings
- CU 22 37Motor Carrier Endorsement60 filings
- CU 21 88Exclusion - Access Or Disclosure Of Confidential Or Personal Material Or Information (Coverage B Only)59 filings
- CU 04 55Electronic Data Liability Coverage (Coverage A) With Access Or Disclosure Of Confidential Or Personal Information Exclusion (Coverage B)55 filings
- CU 21 87Exclusion - Access Or Disclosure Of Confidential Or Personal Information and Data-Related Liability - Limited Bodily Injury Exception Not Included53 filings
- CU 04 98Cyber Incident Liability Coverage Subject To Each Cyber Incident Occurrence And Aggregate Limits50 filings
Recent filings
Latest filings that include this form number. Filed copies open in FilingFocus.
| Submitted | Company | State | Editions | Tracking number |
|---|---|---|---|---|
| Jun 23, 2026 | Allmerica Financial Benefit Insurance Companyand 1 more | CO | 12 23 | HNVX-134968032 |
| Jun 15, 2026 | Sompo America Insurance Company | CO | 12 23 | SMPJ-134971280 |
| Feb 17, 2026 | Safety National Casualty Corporation | CO | 12 23 | SFCC-134815068 |
| Aug 27, 2025 | Church Mutual Insurance Company, S.I. | IL | 12 23 | CHMU-134623640 |
| Aug 14, 2025 | Church Mutual Insurance Company, S.I. | CO | 12 23 | CHMU-134605978 |
| Jun 30, 2025 | Old Republic Insurance Company | CO | 05 14 | LDDX-134589971 |
| Jun 27, 2025 | Next Insurance US Company | CA | 05 14 | NXUS-134584662 |
| Jun 26, 2025 | Sompo America Insurance Company | CO | 12 23 | SMPJ-134585643 |
| Jun 24, 2025 | Explorer Insurance Companyand 2 more | CA | 05 14 | ICWG-134580186 |
| Jun 16, 2025 | Allmerica Financial Benefit Insurance Companyand 1 more | CO | 12 23 | HNVX-134547388 |
| May 14, 2025 | Safety National Casualty Corporation | CO | 12 23 | SFCC-134510598 |
| Mar 6, 2025 | Western Community Insurance Company | WA | 12 23 | FMID-134434779 |
Most filed ISO CX forms
- CX DS 01 Commercial Excess Liability Declarations
- CX 00 01 Commercial Excess Liability Coverage Form
- CX 21 04 Total Pollution Exclusion With A Building Heating, Cooling and Dehumidifying Equipment Exception and a Hostile Fire Exception
- CX 21 93 Broad Abuse Or Molestation Exclusion
- CX 21 94 Sexual Abuse Or Sexual Molestation Exclusion
- CX 21 97 Exclusion - Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS)
- CX 21 10 Limitation Of Coverage To Designated Premises, Project Or Operation
- CX 21 79 Cannabis Exclusion
- CX 21 80 Cannabis Exclusion With Hemp Exception
- CX 21 81 Cannabis Exclusion With Hemp And Lessors Risk Exceptions
- CX 21 11 Exclusion – Abuse Or Molestation
- CX 21 18 Exclusion – Abuse Or Molestation – Specified Professional Services
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