Boston Scientific, a major U.S. manufacturer of medical devices such as pacemakers and defibrillators, has disclosed that a cyberattack is causing a significant global disruption to its operations. According to a filing with the U.S. Securities and Exchange Commission on August 26, 2026, the company began experiencing IT system interruptions on August 25, which have impacted its ability to ship and process orders. However, Boston Scientific has not revealed whether the cyberattack has affected its medical devices or exposed any customer data.

The Massachusetts-based company’s public statement confirms the ongoing investigation and notes that a timeline for fully restoring its systems is currently unknown. Boston Scientific treats approximately 48 million patients per year and maintains critical infrastructure, largely supported by Microsoft and Amazon Web Services. An incident at its Cork, Ireland campus was reported, where network communications were severed, and thousands of employees were sent home in response to the disruption.

This event adds Boston Scientific to a growing list of healthcare technology companies targeted by cyberattacks in 2026, including prominent medical device firms such as Abbott Laboratories and Medtronic. Earlier this year, the U.S. medical device maker Stryker suffered an attack attributed to Iranian-backed hackers that enabled remote wiping of tens of thousands of devices by exploiting centralized device management.

Boston Scientific has refrained from commenting on patient impacts or cybersecurity specifics, emphasizing only the operational disruptions and ongoing investigatory efforts. The healthcare industry continues to face rising cybersecurity threats, given the critical nature of the technologies involved and the sensitive patient information managed by these companies.