NHK has learned that Japan's communications ministry has decided to push for a law revision to require foreign firms to report a network crash to the government.
Email and messaging services offered by big tech firms referred to as GAFA, which include Google and Facebook, are widely used in Japan. But these firms are not subject to the country's telecommunication law as they are based overseas.
A private-sector credit research company says a total of 34 listed firms operating in Japan had buildings and production equipment flooded or destroyed as a result of Typhoon Hagibis.
The tally was compiled by Tokyo Shoko Research, based on data released by listed firms by Wednesday on the storm's effects on business operations. Hagibis ripped through Japan last weekend.