Abstract: A shield for protecting a keyboard assembly includes a one-piece resiliently flexible membrane having a generally planar base overlaying a deck portion of the keyboard assembly, and one or more raised bubbles formed in the membrane and configured to envelope an entire key array or separate or combined key clusters of the keyboard assembly. In a particularly preferred form, a raised bubble enveloping an alpha-numeric and format/command key cluster includes grooves configured to surround and form-fit only alphabetical, numeric, punctuation and symbol keys of the cluster. Thus, a shield adapted for use on the keyboard assembly selected from numerous keyboard assemblies having different key configurations is attained.