The master swordsman, Kamiizumi Ise-no-Kami Nobutsuna. As the founder of the Shinkage-ryu school, he was a great man who elevated 'Heiho' (strategy/martial arts) from a mere technique of killing to ...

Microsoft Threat Intelligence has identified an active multi-stage intrusion campaign targeting organizations in the hospitality and hotel industry since April 2026. We’ve observed this activity ...

June 19, 2026 update: Microsoft assesses with high confidence that this activity is attributable to Sapphire Sleet, a North Korean state actor that primarily targets the financial sector. The ...