Citi's $900 Million Mistake Happened In The Middle Of A Software Switch

For years Citigroup Inc. has been an anomaly among big banks, relying on an obscure piece of software it helped develop to manage loan payments. Just as the bank tried to replace it, things went...

source https://www.ndtv.com/world-news/citibankss-900-million-mistake-happened-in-the-middle-of-a-software-switch-2285345