Suzanne Modeski asks Byers to help her decode a printout of an encrypted file. However, since almost all file creation and encryption systems make extensive use of non-printing characters (especially for the type of printer used in the episode), it would have been impossible to decipher the information on the paper.
In the end credits cast list, the acronym SWAT is written as a standard word, Swat, and Lieutenant is misspelled as Lietenant.
Near the end a dark car is driving away from the Baltimore Guardian newspaper office. As the car is driving away a billboard for "CBC Radio Two" - a Canadian station - is briefly visible.
Langly says that he hacked into the "Maryland DMV". However, in Maryland, that agency is referred to as the MVA (Motor Vehicle Administration).