Every time you fire up your phone or send a document to a colleague, several digital processes steps in to keep your information safe and everything running smoothly. Tucked inside this machinery you’ll find strings like qkfzzu1lbnvinhp4dlhz. At first, they look like scribbles, but they are little workhorses of modern security. Knowing what it is, and what it stands for in the bigger picture, can sharpen your sense of how technology quietly protects every click you make.
