Triple parentheses, also known as an (((echo))), are a symbol used to highlight the names of individuals of a Jewish background. The practice originated from the far-right blog The Right Stuff; the blog's editors have explained that the symbol is meant to symbolize that the historic actions of members of the Jewish faith had caused their surnames to "echo throughout history". The triple parentheses have been adopted as an online stigma by anti-semites, neo-Nazis, and white nationalists to identify individuals of Jewish background as targets for online harassment, such as Jewish journalists critical of 2016 U.S. presidential election candidate Donald Trump.
Use of the markup was brought to mainstream attention by an article posted by Mic in June 2016. The reports also led Google to pull a browser extension meant to automatically place the "echo" markup around Jewish names on web pages, and the markup being classified as a form of hate speech by the Anti-Defamation League. In the wake of these actions, some users, including Jews and non-Jews, have intentionally placed their own names within triple parentheses as a sign of solidarity.