NewsOnJapan reporting on a plan for the US to bring Japan under its cyber defense umbrella:

The United States will extend its cyber defence[sic] umbrella over Japan, helping its Asian ally cope with the growing threat of online attacks against military bases and infrastructure such as power grids, the two nations said in a joint statement on Saturday.

“We note a growing level of sophistication among malicious cyber actors, including non-state and state-sponsored actors,” they said in a statement released by the US-Japan Cyber Defense Policy Working Group, which was established in 2013.

Cybersecurity is a key area where Japan and the United States are deepening their military partnership under a set of new security guidelines released in April, that will also integrate their ballistic missile defence systems and give Tokyo a bigger security role in Asia as China’s military power grows.