A computer or microchip including one or more microprocessors or processing units, at least one network communication component, and an internal hardware firewall. located on a microchip and configured to separate a protected side of the computer or microchip from an unprotected side of the computer or microchip, the unprotected side being configured to connect to a network. The hardware protected side of the computer or microchip includes at least one microprocessor or processing unit. The unprotected network side of the computer or microchip is located between the internal hardware firewall and the network and includes the at least one unprotected microprocessors or processing units and network communications components. The unprotected microprocessors or processing units and network communications components are separate components and both are separate from the internal hardware firewall. The computer or microchip can be actively configured, including using microchips with field programmable gate arrays.