Many thanks to SWLing Post contributor, Ed, who shares this article from Mashable:
Genius is, well, genius. The company recently accused Google of lifting song lyrics from its site, reports the Wall Street Journal.
How did Genius know Google was stealing? In 2016, Genius made a few changes to the punctuation in its song lyrics. Sometimes, it used a straight apostrophe. Other times, a curly one.
Genius did this in a very specific sequence because (are you ready for this?) when “the two types of apostrophes were converted to the dots and dashes used in Morse code, they spelled out the words ‘Red Handed.'”[…]