Cases across the common law world have recognised digital assets as property, but the question of how such assets should be protected against interferences remains contested. At present, the “chattel torts” (conversion, trespass and reversionary injury) do not cover digital assets, leaving a gap in protection in respect of digital assets. There have been suggestions that the tort of conversion should be extended to cover digital assets, but this article argues that this extension would be undesirable for two reasons. First, there are fundamental differences between physical and digital assets, meaning that the concepts and thresholds used in the chattel tort context generate uncertain results (and create substantial risks of incorrect results) in the digital asset context. Second, the rules governing the chattel torts are unsatisfactory and contain many negative characteristics, and so extending the chattel torts to digital assets would replicate the same negative characteristics in the digital asset context.