Stryker Corporation (NYSE:SYK) fell about 3.4% on Wednesday after a report by The Wall Street Journal said the medical device maker had been targeted in a cyberattack tied to an Iran-linked hacking group.
According to the report, the company is experiencing widespread system outages globally. Employees and contractors said the logo of a hacking group connected to Iran appeared on company login screens, with the disruption beginning shortly after midnight on the U.S. East Coast.
Sources cited by the Journal said remote devices running Microsoft Windows—including smartphones, laptops and other hardware configured to access Stryker’s internal systems—had been wiped.
The company instructed employees not to power on corporate-issued devices and to disconnect immediately from all networks, according to an internal email reviewed by WSJ Pro Cybersecurity. The message also advised staff to avoid clicking suspicious links and to remove mobile device management applications and work profiles from their phones.
Stryker is among the largest medical technology companies globally, producing equipment and devices used in hospitals and surgical environments, particularly in orthopedics and neurosurgery.