quantum – n. physics : the smallest amount of many forms of energy (such as light)

sun-synchronous physics : an orbit in which the satellite's orbital plane is at a fixed orientation to the sun

hack-proof – adj. secure from hackers; impossible to hack into.

photon – n. physics : a tiny particle of light or electromagnetic radiation

wiretap – v. to place a device on (someone's phone) in order to secretly listen to telephone calls

intercept – v. to stop and take someone or something that is going from one place to another place before that person or thing gets there

hack – v. to gain access to a computer illegally

crack – v. to puzzle out and expose, solve, or reveal the mystery of something
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