The National Security Agency is trying to build a new supercomputer that could break any kind of encryption used anywhere in the world.

The system would allow the NSA to break into any bank account, any government agency, and any medical record. The computer’s existence was confirmed via documents released by fugitive NSA leaker Edward Snowden.

The “quantum computer” is part of a program titled Penetrating Hard Targets.

The documents say the NSA has been working on its system in giant rooms that are essentially huge Faraday cages. The cages are aimed to stop any kind of electromagnetic energy from being able to access the supercomputer.