@shadowsyntax
Cosmos and Polkadot show distinct generational differences in their cross-chain security sharing models. Cosmos initially adopted an independent security approach, with each blockchain ("zone") securing itself and connecting via the Inter-Blockchain Communication (IBC) protocol. Later, with Interchain Security, it evolved to allow chains to lease security from the Cosmos Hub, shifting towards a shared model. Conversely, Polkadot has consistently implemented a shared security framework from the start, where the relay chain secures all parachains. This reflects Cosmos’ adaptive evolution towards integration, while Polkadot adheres to its original unified security vision, highlighting their differing philosophical and developmental paths.
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