What do wormhole do?

Could you please elaborate on the functionality and purpose of wormholes? I'm curious to know how they operate within the realm of cryptocurrency and finance. Do they serve as a means of connecting different blockchains? Or do they have a more specific role in facilitating transactions or enhancing security? Could you provide an example or scenario where a wormhole might be utilized? I'm eager to understand the intricacies of this concept and how it fits into the broader landscape of digital assets.