The term "void work" accurately describes what happens when a nulled plugin encounters modern WordPress updates. Nulled WordPress Plugins - Dangers and Downsides
Hackers remove the license key verification code.
Can infect your visitors' computers or redirect your users to malicious websites. 2. No Updates, No Protection
This article explores the full scope of the "nulled and void" phenomenon: what it is, what you risk, and why the only truly "void" thing about nulled plugins is the false sense of security they provide.