
Naoya Yoshino is the Tokyo-based head of Nikkei's political news group. As a political reporter, he interviewed 14 Japanese prime ministers, from Morihiro Hosokawa to Yoshihide Suga, and covered the finance and economy ministries. He worked as a Washington correspondent from 2012 to 2017, reporting on the 2012 and 2016 presidential elections.
TOKYO -- Cyberattacks, unfolding out of the public eye, resemble an undeclared war, and losing such warfare can plunge a nation into crisis -- a point Japan has failed to grasp despite rising stakes.