The International Association of Privacy Professionals (IAPP) has updated its US State Breach Notification Chart, a resource that summarises state breach notification laws across the United States. In an analysis published on 26 March, the IAPP says the revised chart highlights both nationwide coverage and continuing variation in how states define personal information, apply harm thresholds, and trigger reporting duties.
According to the IAPP, all 50 states, the District of Columbia, Guam, Puerto Rico, and the US Virgin Islands now have breach notification laws. California enacted the first state law in 2002, which took effect in 2003, while Alabama was the last state to adopt such a law in 2018. The IAPP says the result is a de facto nationwide framework, but one marked by significant differences across jurisdictions.
A central point in the analysis is that breach notification laws generally use a narrower definition of personal information than more recent comprehensive privacy laws. The IAPP says the original purpose of breach notification was to alert people to the risks of identity theft and financial fraud after a data breach, so laws tend to focus on identifiers such as names combined with Social Security numbers, driver’s licence details, or financial account credentials.
The article contrasts narrower statutes with broader ones. Hawaii’s law is described as among the narrowest, while Illinois and California are presented as having broader definitions that can extend to medical information, health insurance details, biometric data, genetic data, and, in California’s case, some automated licence plate recognition data.
Even so, the IAPP says many state breach laws still do not cover large categories of digital information, such as browsing history, cookie data, IP addresses, cell phone numbers, purchasing records, or complete financial transaction histories where account credentials were not compromised.
Exemptions and scope also vary. The IAPP says most breach notification laws apply broadly to businesses and often to nonprofit organisations, while privacy laws tend to contain more exclusions. The article notes that some states cover state and local government entities directly, while California has a separate breach notification law for governmental bodies. The IAPP also says its chart is focused on laws applicable to the private sector.
Encryption safe harbours appear across the state laws, according to the analysis, with some states also recognising redaction or other protections that render data unreadable or unusable. Attorney general notification requirements also differ. The IAPP says 34 state laws require notice to the state attorney general once certain thresholds are met, with thresholds ranging from 250 affected residents in North Dakota and Oregon to 1,000 in many other states, while some states, such as Connecticut and New York, require notice regardless of the number affected.
Harm thresholds are another area of divergence. The IAPP says about 30 state laws include a harm standard, meaning notice may not be required unless the breach caused, or is likely to cause, harm to affected individuals.
The article describes substantial differences in wording across states, with some referring to ‘reasonable likelihood’ of harm, others to ‘material risk,’ ‘substantial economic loss,’ or misuse of the data, while some states, including California, Georgia, Illinois, Massachusetts, Minnesota, North Dakota, and Texas, require no harm showing at all.
The practical effect, the IAPP argues, is that organisations holding data on residents of multiple states face a complex compliance problem. A data element that triggers notice in one state may not do so in another, and the article says reconciling the different harm standards is effectively impossible. The analysis notes that some organisations may decide to notify if there is doubt, while others may choose to notify only where clearly required.
The IAPP concludes that the absence of a preemptive federal breach notification law leaves entities to navigate overlapping but inconsistent state rules. Its updated chart is presented as a tool to help practitioners track those differences and build awareness of how US state breach notification laws continue to evolve.
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