Wiktionary
firewalled
vb. (en-past of: firewall)
Usage examples of "firewalled".
Two minutes later, before people had even strapped in, the pilot of the National Emergency Airborne Command Post - Kneecap - firewalled his engines and roared down runway, Zero-One Left.
During the wars, the internetwork of longjump T-gates that wove the subnets of the hyperpower together was shattered, leaving behind sparsely connected nets, their borders filtered through firewalled assembler gates guarded by ferocious mercenaries.