B245-b wrote:
It was saying something to the effect of there is some program reaching out to a malicious web site,
You’ll need to address that with Trend Micro.
In isolation, that “reaching out to a malicious website” is an utterly-noise message. There’s nothing action to be taken. Hopefully, there's more than that in that log.
If iCloud+ Private Relay and ODoH is enabled on your iPhone, the router and its rummaging doesn’t even have the remote site, which would mean the message is very likely a false positive.
Pragmatically, add-on anti-malware can be more of a problem than the value it can supposedly provide, as compared with the built-in anti-malware (and Windows and its built-in Defender anti-virus included), the add-on security apps tend to be unnecessarily noisy, and too much of the add-on “security” tooling is itself becoming difficult to distinguish from actual malware, albeit with a EULA and lawyers and more robust metadata collection servers.