FabFilter User Forum
your copy of xxx appears to be pirated or infected
Hi,
any advice on this message?
This started happening in Reaper on Mac Mini M4Pro 26.2 Tahoe.
Happens also on my Fabfilter 3, where may I download it btw?
thank youuu
luca formentini — Feb 12, 2026
Could it be that you are using MacKeeper, CleanMyMac or any similar software? These apps claim to keep your computer clean, but they also alter the actual plug-in file which can trigger this warning.
You can download all legacy installers here:
www.fabfilter.com/support/downloads