The 'Password on the Back of the Router' meme humorously highlights the universal struggle of trying to read and input the default, highly complex security keys found on ISP-provided hardware. These passwords typically consist of a nonsensical and chaotic string of uppercase letters, numbers, and special characters that are nearly impossible to distinguish, such as the classic confusion between the number zero and the letter O. The meme often uses exaggerated visuals—ranging from eldritch horrors to ancient cryptic texts—to represent the daunting nature of these strings. It gained massive popularity across Reddit and Twitter as a relatable tech trope that resonates with anyone who has ever crawled behind a dusty couch just to get a guest connected to the internet.