16 August 2012 7:10am

Commonwealth Bank has reduced the number of major computer crashes it endures from 10 in 2011 to just seven during the last financial year.

Five years ago, the bank and its customers were suffering the effects of 70 Severity 1 crashes (classed as a computer failure for which there is no obvious workaround) a year.

While the bank’s track record has improved, it’s still not faultless. Last month the bank suffered a significant internal crash.

Ian Narev, CBA's CEO, said yesterday that that this was the result of a "routine software upgrade".

He said the problem...