Seems hackers broke into a secure file-sharing service called Accellion, based in California. The RBNZ was using that to exchange documents with the likes of banks and insurance companies.
There was a bug in the client software used by customers. The company issued a patch, but it appears the RBNZ was a little slow applying it <https://www.stuff.co.nz/business/123921564/reserve-bank-hack-bank-may-not-have-applied-patch-in-time>.
Seems the software is rather old, dating back 20 years <https://www.stuff.co.nz/business/opinion-analysis/123922521/reserve-bank-hack-has-brought-its-capabilities-into-question>.
Considering that there are so many open-source tools out there... It's a shame... Just had a look at what the university uses, and it looks they use https://zend.to/ (according to bits in the html source code). Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 577-5304 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/