Space Bears

Space Bears is a ransomware group observed targeting organizations in Japan in the first half of 2025. In the provided reporting, it is listed among active ransomware groups affecting Japanese organizations and was attributed with two confirmed incidents. The broader context indicates ransomware activity in Japan primarily affected small and medium-sized enterprises, with manufacturing the most targeted sector, but no specific intrusion methods, malware family details, technical capabilities, victimology beyond incident counts, associated threat actors, or indicators of compromise are provided specifically for Space Bears in the source content.