Long time nulled Worpdress / Prestashop themes and plugin / Codecanyon script user, I get my nulled stuff from the most reliable nullers out there. Can't directly name them but they are not that hard to find, just research their world for a day or two and the best ones will stand out. After hundreds of instances of using / tweaking / releasing and delivering to Web Design customers and more importantly hosting the scripts myself for them (secure cPanel / DirectAdmin nodes) I have never even once had a breach or incident, never had zombie botnets and resource leeching either, I always lean on the safe side and since I know my way around PHP and JS I always inspect all the code but never found anything fishy and out of order. You will be surprised by moral integrity of the nullers. Such an awesome bunch of dudes they are :-)