A recent cyberattack on medical technology giant Stryker resulted in the remote wiping of tens of thousands of employee devices, with the company confirming that no malware was involved. The incident was claimed by the Handala hacktivist group, believed to be linked to Iran. Meanwhile, Companies House, a British government agency, acknowledged a security flaw that exposed business data, and Microsoft Exchange Online suffered an outage that blocked access to mailboxes.

These incidents underscore the escalating threat of cyberattacks across various sectors. As organizations increasingly rely on digital infrastructure, the potential consequences of a breach or outage can be severe. The Stryker attack, in particular, highlights the risk of data loss and disruption to critical services.

• The Stryker attack was limited to the company's internal Microsoft environment and did not involve malware.
• Companies House's WebFiling service was closed to fix a security flaw that exposed companies' information since October 2025.
• Microsoft Exchange Online outage affected multiple connection methods, including Outlook on the web and Exchange ActiveSync.

"The Stryker attack demonstrates the importance of robust cybersecurity measures, including regular backups and disaster recovery plans." — Franz Regul, former CISO for the Paris 2024 Olympics

The recent attacks and security flaws have raised concerns about the vulnerability of critical infrastructure to cyber threats. As the world becomes increasingly interconnected, the need for robust cybersecurity measures has become more pressing.

As organizations continue to rely on digital infrastructure, the importance of investing in cybersecurity cannot be overstated. The recent incidents serve as a wake-up call for companies to review their security protocols and ensure that they are prepared to respond to potential threats.

• Who: Stryker, Companies House, Microsoft Exchange Online
• When: Recent incidents occurred in 2025
• Where: Global