Matthias Lehmann highlights that digital assets present new challenges due to their intangible, pseudonymous, and global nature, which may require specific rules of enforcement and insolvency law. An illustration of these challenges, according to Lehmann, is the question of whether a custodian of digital assets must respond to information requests and comply with asset freezes and seizures issued by foreign enforcement authorities. This is just one example of the many issues that still need to be resolved.