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Finance

Where's the backup? Behind Mizuho's scramble over system crash

Megabank's computer system was developed by four separate companies

Up to 130 Mizuho Bank ATMs across Japan stopped functioning Aug. 23, just days after a widespread systems crash that disrupted bank teller operations in branches nationwide.   © Reuters

TOKYO -- Multiple backup mechanisms failed to activate during Mizuho Financial Group's widespread system crash last week, Nikkei has found, with a reliance on numerous outside vendors complicating system management. 

The crash was the group's fifth in 2021. Japan's Financial Services Agency is extending its on-site inspections as last week's incident raised the possibility of fundamental problems with the banking system.

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