Keiko Fujimori was sworn in as president of Peru in Lima on the 28th; her term runs until July 2031.

Microsoft on July 27 released MAI-Cyber-1-Flash, its first cybersecurity-specific AI model, and integrated it into its multi-agent vulnerability detection and remediation platform MDASH. Microsoft (MSFT.O) said the combination scored 95.95% on the CyberGym vulnerability-detection benchmark, outperforming MYTHOS, GEMINI and GPT-series models and reducing MDASH costs by about 50%. The company also launched the Perception agent security system for continuous monitoring, automated patching and response to novel threats.

Ukrainian President Zelenskiy arrived in the United States in the early hours of July 28 (local time) and is scheduled to meet President Trump later that day. Zelenskiy said missile defense and broader strategic cooperation with the US are the primary topics for the meeting.