Iran-Backed Hackers Claim Wiper Attack on Medtech Firm Stryker

KrebsOnSecurity items this cycle describe multiple high-impact threats: an Iran-linked actor claims a destructive wiper attack against medtech firm Stryker (causing major site disruptions); the rapid expansion and operational impact of the Kimwolf IoT botnet (2M+ devices) including DDoS, scans of internal networks, and abuse of the I2P anonymity network; a new phishing-as-a-service (“Starkiller”) that proxies real login pages and relays credentials and MFA codes to bypass protections; and ongoing extortion/swatting activity by Scattered Lapsus ShinyHunters. Microsoft’s March 2026 Patch Tuesday