Computer networks of the Diet and Japan's largest defense contractor have been attacked by alleged Chinese hackers, but Japan is not the only target in the region.
Taiwan has long been a key target of such attacks, especially from China. The attacks began in 1999 after then President Lee Teng-hui upset Beijing by saying negotiations between the two sides should be conducted on a "special state-to-state" basis.
Since then Chinese hackers claimed to have launched more than 100,000 attacks on Taiwanese government websites.