NetRunnerPR emerged in January 2026 as a ransomware group focused on financial extortion through data exfiltration and public shaming. The group has claimed responsibility for breaching Japanese healthcare organizations, specifically Shiraume Hospital and Nippon Medical School Musashi Kosugi Hospital, where they assert to have exfiltrated patient personally identifiable information and medical records. NetRunnerPR distinguishes itself by utilizing cybercrime forums to announce impending data releases and provides sample data to validate its claims. Despite these claims, the group has a limited activity history and lacks a documented record of extensive ransomware operations or confirmed breaches, leading some to question the overall credibility of their reported activities.