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Medical device maker Boston Scientific is being hit by a cyberattack. The shares are falling

Cnbc • August 26, 2026

Boston Scientific said Wednesday it was hit with a cyberattack this week that is affecting its operations. The disclosure sent shares of the $72 billion medical device maker lower.

The attack is disrupting Boston Scientific's access to company information systems and applications, including shipments services, the company said in a SEC filing.

"While the company is working diligently to restore affected functions and systems access, the timeline for a full restoration is not yet known," the filing said.

Shares were down 5.8% in premarket trading on Wednesday. Shares of the maker of devices such as pacemakers and stents have been nearly cut in half already this year, under pressure after issuing a weak profit forecast in the first quarter.

When asked to , the company reiterated the info from the SEC filing.

Analysts at investment bank Piper Sandler said they spoke to company management on Wednesday morning and that they thought it may be weeks before Boston Scientific can resume normal business operations.

"We believe BSX may be able to return to shipping all of its products in less than three weeks," Matt O'Brien at Piper Sandler wrote.

"The company is unable to process and ship orders, so sales will likely be adversely impacted," he wrote, adding that "clearly, this is not great for a company that is already seeing sales growth slow."

The full story

This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Boston Scientific Faces Global Disruption from Cyberattack Boston Scientific experienced a significant cyberattack on August 25, 2026, leading to a global disruption of its operations. The attack affected critical IT systems, resulting in a network outage and the inability to process and ship customer orders. The company activated incident response protocols and is working with third-party cybersecurity experts to investigate and contain the threat. As of now, the full scope of the incident, including potential data exfiltration or ransom demands, remains unclear. The attack has already impacted thousands of employees, particularly in Ireland, where operations were severely affected. Boston Scientific has not disclosed whether patient data was compromised or if any ransom was demanded. The company’s stock fell by over 4% following the announcement. This incident is part of a troubling trend, as several medical technology firms have faced cyberattacks in recent months. 24 sources 59

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Boston Scientific