The Mount Kisco Surgery Center LLC d/b/a The Ambulatory Surgery Center of Westchester

PRESS RELEASE

MOUNT KISCO, NY, June 26, 2024 /PRNewswire/ — Mount Kisco Surgery Center LLC, d/b/a The Ambulatory Surgery Center of Westchester (“ASCW”), has learned of a data breach that may have affected information of certain current and former employees and patients.

On November 3, 2023, ASCW discovered unusual activity in an employee’s email account. Upon discovery of this activity, immediate action was taken to secure the account. ASCW also engaged a digital forensics and incident response firm to conduct an investigation to determine why data in the mailbox may have been affected. The investigation revealed that certain files stored in the email accounts were accessed between October 23, 2023, and November 3, 2023.

ASCW then conducted a comprehensive review of the potentially affected data. On May 30, 2024, ASCW determined that the account contained personal and/or protected health information of certain individuals. The potentially affected information may include names, social security numbers, driver’s license or state identification numbers, dates of birth, medical information, including diagnosis information, treatment information, and prescription information, and health insurance information, including claims information and health insurance ID numbers, and financial account information. On June 26, 2024, ASCW notified affected individuals of the incident in writing via U.S. mail.

ASCW has implemented additional measures to improve network security and minimize the risk of similar incidents in the future.

ASCW has established a toll-free call center to answer questions and resolve related concerns about the incident. Call center staff can be reached Monday through Friday from 9:00 a.m. to 9:00 p.m. EST at 1-888-715-8252.

ASCW is located at 34 S. Bedford Rd., Mount Kisco, NY 10549.

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