How does the SSV network work?

Could you elaborate on the workings of the SSV network? I'm particularly interested in understanding its underlying principles and mechanisms. How does it facilitate secure staking and validation? What are the key components that enable its efficient operation? Is there a decentralized governance model in place? Additionally, how does the network handle scalability and security challenges? I'd appreciate a concise yet comprehensive explanation of how the SSV network functions in the realm of cryptocurrency and finance.