I recently got Predator Connect W6 router. I enabled network attack and smart home security options on it. After a while I noticed that the latter one breaks Philips Hue Matter connection with Google Home app (lights in the app either straight up show up as disconnected or are stuck with their last status and do not respond to any commands). Disabling smart home security fixes this.
On that note, it would be nice to have some kind of a log with entries mentioning what those Trend Micro security features blocked, so it would be easier to analyze any potential issues like that.
Since I found no way to report this via other channels, I posted it here in hopes that you can get Trend Micro to update its definitions, so they don't break Matter connections.