Securing the software supply chain has become a common concern among delivery teams, reflected in the growing number of tools and techniques in the space, several of which we've covered previously in the Radar. The growing popularity of GenAI-based tools as aids to the software development process has introduced a new software supply chain attack vector: package hallucinations. We believe it’s important for teams that use such GenAI tools in their development process to stay vigilant against this risk. To do so, teams can perform dependency health checks to counter package hallucination: look at the date it was created, download numbers, comments and stars, the number of contributors, activity history and so on before choosing to adopt. Some of these can be performed on package repositories and GitHub, and tools like deps.dev and Snyk advisor can also provide additional input. Although it's not a new technique, it's gaining renewed relevance as teams increasingly experiment with GenAI tools in their software development process.