Cyber Liability by state
Illinois data breach notification law and cyber insurance
Direct answer
What is Illinois's data breach notification law?
Illinois's breach notification law (815 ILCS 530) requires businesses to notify affected residents in the most expedient time possible and without unreasonable delay after a breach of personal information. Illinois requires businesses to notify affected residents of breaches of unencrypted personal information without unreasonable delay, with Attorney General notice above 500 residents.
What the statute requires
Illinois requires businesses to notify affected residents of breaches of unencrypted personal information without unreasonable delay, with Attorney General notice above 500 residents. Cyber liability insurance typically covers the forensics, notification, and legal review this statute drives.
- Consumer notification deadline
- In the most expedient time possible and without unreasonable delay
- Regulator notice
- Notify the Illinois Attorney General when a breach affects more than 500 Illinois residents.
- Safe harbor
- Notification is not required if the compromised data was encrypted or redacted and the encryption key was not acquired.
- Enforcement
- Violations are unlawful practices under the Consumer Fraud and Deceptive Business Practices Act, enforceable by the Attorney General.
Statutes and sources
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Illinois Personal Information Protection Act
815 ILCS 530
Regulator: Illinois Attorney General . Last verified 2026-07-29 from the official source .
Related Illinois compliance pages
Cyber Liability in other states
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- Rhode Island
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- Texas
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- Washington
- West Virginia
- Wisconsin
- Wyoming
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