Illinois is poised to update its privacy law to require businesses to swiftly report larger data breaches to the state attorney general.

The General Assembly voted 79-32 to approve Senate Bill 1624 amending the Personal Information Protection Act. The Senate unanimously approved the bill in April, and Gov. J.B. Pritzker (D) is expected to sign it into law, according to the bill’s sponsor, Sen. Suzy Glowiak (D).

PIPA doesn’t currently require data collectors to make disclosures to law enforcement, leaving the state without a vigorous mechanism for ensuring compliance, Glowiak said. In this climate, some data collectors delay notifying...