Among the many attempts, the legendary accomplishments, and the epic failures, we could list thousands of different NPs, differing from one another thanks to the creative endeavors of their designers. Despite their remarkable differences and researchers’ endeavors to make them one of a kind, they all aim to achieve one goal: to deliver in a specific way one particular form of payload, while remaining as unnoticed as possible by the body’s defense mechanisms. For everyone who has made an effort to create their own version of such a silver bullet, it has come to mind that nature in its incredible variety had already invented a few ingenious solutions to this problem. In the world of nano-based drug delivery, one entity dominates as the quintessential example of precision, efficiency, and stealth: the virus. Not by chance, these two worlds share many features that span from the physical laws that govern their assembly and stability to the chemical similarities in their overall composition.121