Boston Scientific disclosed in a filing with the U.S. Securities and Exchange Commission that a cyberattack began on Tuesday, causing disruptions to its IT systems and business applications. The company, based in Massachusetts and known for implanted devices such as pacemakers and defibrillators, serves approximately 48 million patients annually. The filing indicated the attack limited access to systems critical for order processing and shipping, but the company has not confirmed effects on patients or devices. A spokesperson declined to comment on patient impact or recommended actions. The investigation remains ongoing and no timeline for system restoration has been provided. Local Irish media reported that staff at the Cork campus were sent home after network communications were cut. The incident follows recent cyberattacks on other health‑technology firms, including Abbott Laboratories, Medtronic and Stryker, which was attributed to Iranian‑backed actors who exploited a Microsoft management portal. Boston Scientific relies on Microsoft and Amazon Web Services for its infrastructure, according to public records. The company has not indicated when operations will return to normal, and the scope of the breach remains unclear.