The incident, which occurred on Wednesday, affected Microsoft Stryker’s internal environment, causing widespread technical failures that disrupted communications and work processes across the organization.
In a regulatory filing with the U.S. Securities and Exchange Commission (SEC), the company said the full operational and financial impact of the attack remains unclear, and noted that recovery efforts are still ongoing.
According to an employee who spoke to NBC News, company-issued phones stopped working during the incident, leaving many staff unable to communicate or perform routine tasks.
“The whole company is at a standstill,” an employee at Stryker’s Cork, Ireland facility – the company’s largest base outside the United States – told the Irish Mirror, adding that most of the company’s devices had been removed and employees were unable to work.
Stryker said it is actively working to restore impacted systems but has not provided a timeline for full recovery.
“We continue to resolve disruptions impacting our global network due to cyberattacks,” the company said in a statement on its website on Thursday. “At this time, there is no indication of malware or ransomware, and we believe the situation is unique to our internal Microsoft environment.”
The company also assured customers that its medical products—including the Mako surgical system, Vocera communication device, and LIFEPAK35 defibrillator—remain safe and fully operational.
Meanwhile, an Iran-linked hacking group called Handala has claimed responsibility for the breach. In a post on
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