Story perspectives

Boston Scientific Warns of Missed 2026 Guidance After Cyberattack

9/8/2026

Summary

Story summary

Boston Scientific said it will miss its 2026 Q3 and full-year sales and earnings guidance after a cyberattack.
The cyberattack was first detected on August 25, causing a global network outage that halted manufacturing and order processing.
Manufacturing has resumed at most global facilities and all sterilization sites are operational.
Boston Scientific shares fell about 2% in morning trading, extending a year-to-date decline of roughly 50%.

History

Historical Context

In late June 2017, the NotPetya wiper—disguised as ransomware and delivered through a compromised M.E.Doc tax-software update—crippled Ukrainian ministries, banks and global firms such as Maersk, costing $4 billion. The attack showed how unpatched Windows and supply-chain vectors could spread worldwide. That precedent frames Boston Scientific’s August 2024 intrusion, which forced a shutdown and sparked calls for tighter medical-device cyber standards.

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Story summary

Boston Scientific said it will miss its 2026 Q3 and full-year sales and earnings guidance after a cyberattack.
The cyberattack was first detected on August 25, causing a global network outage that halted manufacturing and order processing.
Manufacturing has resumed at most global facilities and all sterilization sites are operational.
Boston Scientific shares fell about 2% in morning trading, extending a year-to-date decline of roughly 50%.

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