Iran-Backed Hackers Claim Wiper Attack on Medtech Firm Stryker

KrebsOnSecurity coverage highlights multiple active cyber threats: an Iran-linked hacking group claims a wiper attack against medical device maker Stryker; Microsoft issued fixes for 77 vulnerabilities in March 2026 (no high-profile zero-day reported this month); a stealthy phishing-as-a-service called “Starkiller” proxies real login pages and relays MFA to capture credentials; the Kimwolf IoT botnet (≈2M devices) is driving large DDoS campaigns, abusing I2P to evade takedowns and is present in corporate and government networks, while its alleged operator (“Dort”) has orchestrated harassment/c