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No cyberattack confirmed behind Tokyo Stock Exchange shutdown: chief Cabinet secretary

Chief Cabinet Secretary Katsunobu Kato (Mainichi/Kan Takeuchi)

TOKYO -- Chief Cabinet Secretary Katsunobu Kato told a news conference on the morning of Oct. 1 that it was "highly regrettable" that all trading of shares listed on the Tokyo Stock Exchange (TSE), operated by the Japan Exchange Group (JPX), had been suspended due to a technical glitch as of 9 a.m. when trading was to have begun.

    Kato also said that the Financial Services Agency (FSA) had instructed JPX and the Tokyo exchange to take steps to determine the cause of the glitch and work toward resuming operations.

    "Not being able to trade on the stock exchange, which is an important infrastructure of the market, is to limit investors' opportunities to trade. This is highly regrettable," Kato told reporters. Asked about the possibility of a cyberattack, he said, "We have not confirmed anything. We are in the midst of an investigation to identify the cause."

    Kato went on to say, "This sort of situation is the first we've encountered since November 2005, when trading of all listed shares was halted. We must thoroughly investigate the cause, and make sure something like this never happens again."

    The Tokyo Stock Exchange announced that it would shut down trading for the entire day while the news conference was taking place. When asked for his thoughts, Kato said, "This is the first time I'm hearing about this. I'd like to quickly gain an understanding of the state of affairs."

    (Japanese original by Kei Sato, Political News Department)

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