Trend Micro sues Barracuda, potentially raises the cost of security for all

We're used to patent trolls being shifty little bozo operations like Acacia Research that serve no useful purpose beyond proving that some life forms never evolve. Sometimes, however, patent trolls come in larger sizes and have otherwise legitimate businesses. Such is the case today with Trend Micro's apparently specious lawsuit against Barracuda Networks and, indeed, the entire open-source community.