The codes they fashioned ensured that our whispered conversations over cellular waves remained unintelligible to eavesdroppers, and that our economic forays into the digital marketplaces remained confidential.

他们制定的代码确保了窃听者无法理解我们通过蜂窝电波进行的低声对话，并且我们对数字市场的经济尝试仍然保密。