Trend Micro tells us that they don't need a reason - Symantec did it, McAfee does it, and we should just f... off.

Still waiting for the lawyers to sort this out, Trend Micro imho has already received a Cease & Decist, but you know how legal steps usually take months to years...

In my opinion, software that forcily removes other legit security software is just malware. Don't want to lower us to their moral level though, even though it's sometimes itching to react the same ugly way