HyperEVM is not a separate blockchain but is fully integrated into Hyperliquid’s Layer 1, inheriting its security

Quotes that support claims

Unlike other EVMs, HyperEVM is not a separate chain. Instead, it is secured by the same consensus mechanism as Hyperliquid’s layer-1

HyperEVM includes blocks built as part of Layer 1 execution that inherit 'all security from HyperBFT consensus.