According to @OnchainDataNerd, Binance has introduced Secure Auto Sign (SAS), described as a unique feature that lets users approve a transaction once and continue trading seamlessly for up to 7 days, with signing performed inside a Trusted Execution Environment that keeps private keys isolated; source: @OnchainDataNerd. For active on-chain traders, this enables multiple transactions to execute under a single approval window, reducing repeated confirmations and streamlining trading workflows over the 7-day period; source: @OnchainDataNerd.