According to @ItsDave_ADA, over the last 60 days one of Solana’s largest validators, Helius, validated 412,325 blocks, and 2,960 of those blocks (0.72%) contained at least one sandwich attack, underscoring how widespread MEV has become on Solana; source: @ItsDave_ADA (X, Oct 4, 2025). Some validators recorded a sandwich-attack rate as high as 27.34% of blocks produced over the same period, highlighting significant exposure variability across validators; source: @ItsDave_ADA (X, Oct 4, 2025). The author characterizes this as technical users extracting value from non-technical users, a direct MEV concern for on-chain traders and liquidity takers on Solana DeFi; source: @ItsDave_ADA (X, Oct 4, 2025).