TOKYO -- All it took was one bad setting to prevent auto-backup equipment from kicking in when a critical device failed, sparking a systemwide shutdown that halted a full-day of trading on the Tokyo Stock Exchange earlier this month, according to a report submitted Friday.
The bourse and its parent company, Japan Exchange Group, were ordered by Financial Services Agency to submit the report on the causes of the Oct. 1 blackout along with steps to prevent it from recurring, including working with securities companies to develop clearer contingency plans.
