SIDLEY AUSTIN LLP Data Breach

Investigation Open

Case File · IL Attorney General · Filed Apr 28, 2026

Quick Facts

State Filed

Date Reported to AG

Apr 28, 2026

Date of Breach

Not disclosed

Records Affected

Not disclosed

Status

Investigation Open

Last Updated

Jul 21, 2026

Data Types Exposed

What Happened

Were You Affected?

You may have been affected by the SIDLEY AUSTIN LLP data breach if:

You received a written data breach notification letter from SIDLEY AUSTIN LLP
You are or were a customer, patient, or employee of SIDLEY AUSTIN LLP
Your information was held by SIDLEY AUSTIN LLP in IL

"According to a filing with the IL Attorney General's office on April 28, 2026, this breach affected not publicly disclosed individuals."

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