SoftBank Group—SoftBank and NTT built AI cybersecurity systems that process and diagnose vulnerabilities entirely within Japan, avoiding US data transfer
SoftBank Corp, working with NTT, expanded AI-powered cybersecurity systems that diagnose software vulnerabilities using data processed entirely within Japan rather than sending it to US servers, responding to Japanese enterprise demand for data sovereignty. SoftBank's SB Intuitions unit also launched the Sarashina3 domestic large language model on June 30, 2026, trained and operated end-to-end in Japan. The initiatives came alongside Japanese government discussion of requiring contractual guarantees that AI providers not use enterprise data for model training.
Scoring Impact
| Topic | Direction | Relevance | Contribution |
|---|---|---|---|
| Data Security | +toward | secondary | +0.50 |
| User Privacy | +toward | primary | +1.00 |
| Overall incident score = | +0.214 | ||
Score = avg(topic contributions) × significance (low ×0.5) × confidence (0.57)
Evidence (1 signal)
Nikkei Asia: NTT, SoftBank eye AI cybersecurity systems that keep data in Japan
Nikkei Asia reported that NTT and SoftBank are building AI-powered cybersecurity systems that diagnose vulnerabilities using data kept and processed within Japan, rather than sent to US servers, to meet Japanese enterprise data-sovereignty demand.