This means that the company has not agreed to pay whatever ransom was demanded by the attackers.
Nefilim, which recently attacked logistics and transportation firm Toll Holdings, is one of the growing number of ransomware that exfiltrates victims' files before encrypting them on-site.
This, in effect, means that any victim is hit by both a data breach and also loses access to his/her files.
A screenshot of the Nefilim site on the dark web. Supplied
The file list shows that the materials released are financial documents dating back to 2014.
Fisher & Paykel, which is based in New Zealand, operates in 50 countries and does its manufacturing in Thailand, China, Italy and Mexico, according to Wikipedia.
There are no recent revenue figures given by Wikipedia, but the company's 2007 revenue was NZ$1.42 billion (A$1.32 billion).
Contacted for comment, threat researcher Brett Callow, who works for New Zealand-headquartered security outfit Emsisoft, said companies in this situation had no good options.
"They've been breached and, whether the ransom is paid or not, that does not change. Incidents such as this are not only a risk to the company itself, but also to its customers and business partners as it's very often their information that is exposed and posted online," he added.
Fisher & Paykel has no media contacts or email addresses listed on its Australian website. Its New Zealand site has no contacts either and appears to be out of date, with the latest press releases posted there being from 2018.
iTWire has written to a media contact listed on one of those 2018 releases and is also attempting to contact the company through a Web chat app to seek a reaction.