WASHINGTON -- Revelations that Chinese hackers have accessed Japanese defense secrets are causing concern in the U.S., which is poised to share more defense-related information with its Asian ally.
US-China tensions
Chinese cyberattacks on Japan prompts U.S. push for stronger defenses
Tokyo is 'primary target' for more than a decade, expert warns
Secure systems are considered key for the U.S. to successfully coordinate with allies during a crisis. © Reuters
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