Brazilian method. It's called that way because that awesome country discovered that wonderful exploit, and it uses LEGIT TICKETS!!!!!!!
You can just get them ready to play on a site you're not supposed to go and install them with WUP Installer.
It's a terrible name that got widespread because some Brazilian people shared copyrighted files from NUS + ticket from "WUD" for a few games they managed to install themselves. The Brazilian tester that shared this here probably didn't really know how to "patch" the tickets from the (at the time) incorrectly (and not known incorrectly) decrypted WUD's and sounded like he didn't know NUS content was involved (he just did warez). Shortly after that sharing some people managed to find the correct way to "patch" (well the correct word would be "fix") these tickets. Coincidentally, this happened right before we got access to our own tickets thanks to the great work of everyone that worked on the IOSU exploit.
It's not an exploit and therefore not a new exploit.
Some reasons for why it's a terrible name: Peruvian way, Swedish approach, Chinese style, Russian process, these names all sound weird and mysterious. Also a "country" did not discover that, a few people who happened to be from this country showcased a few examples where their shenanigans, whatever they were (but resulted in a fixed ticket), worked. The anonymous person who edited those first few tickets probably had some idea of what they were doing but didn't explain to the tester(s) (or testers didn't understand). Most names are related to what the undergoing process is (browserhax, menuhax, ninjahax, stickerhax, redNAND, arm9loaderhax, OSSDriverspoilt, GX2sploit, iosuhax, haxchi, coldboothax, WUP Installer, NNU Patcher...) or make some reference to what they're working on (Cafiine, Mocha... (for coffee references within the Wii U + the Wii U itself being codenamed Project Café)) or a bit of both (SDCafiine) or a pun (FBI, which installs CIA files, CIA standing for CTR Importable Archives)). The console hacking world has nothing to do with a national pride contest. Brazil can be considered an awesome country for other reasons, but not because a few of their people happened to do something related to Wii U piracy. That's like saying Germany is an awesome country because guys like dimok, Maschell, FIX94 did great some great work, France is somewhat good because Coc4tm made OurLoader (which can probably be considered irrelevant now with the region-free patches), UK is up there with MrBean, Chadderz (Cafiine) and others and I won't make all the countries of all the people that did something (because I probably can't list all people that did something that many can consider cool for the Wii U scene, or I don't know the nationality for each of them), but my point is we're not evaluating nations, plus the greatest collaborations this scene have witnessed are international, since basically nobody cares what the nationality of others are.