This article introduces Volt Boot, a method for executing physical memory disclosure attacks on on-chip SRAM memories by exploiting SoCs’ power domain separation. Memory power domain: This domain supplies power to the memories and their associated peripherals. We can induce artificial SRAM state retention in any SoC that has separate SRAM and compute core power domains. A simpler alternative is toggling SRAM power at reset, but this hardware-based solution is impractical for existing SoCs due to required hardware modifications. In this paper, we show that current on-chip SRAM is indeed resilient against conventional temperature “freezing”-based attacks.