As COVID-19 spreads, conspiracy theories are spreading internationally and within certain countries. Example conspiracies include that COVID-19 is part of a government bioweapons program, that 5G cell towers are spreading COVID-19, and that pharmaceutical companies are encouraging the spread of COVID-19 for profit [1,2]. Many conspiracy theories existed before COVID-19. For example, conspiracy theories contended that President Obama was not born in the U.S., that Sandy Hook was a hoax, that the George W. Bush Administration knew about the 9/11 plot before it happened, and that John F. Kennedy was assassinated by the Central Intelligence Agency [3]. In the U.S., national opinion polls show that nearly 90% of Americans think that Lee Harvey Oswald did not act alone in killing John F. Kennedy [4]. Stempel et al. [5] reported that nearly one-third of American respondents accepted the theory that federal officials either facilitated the September 11th attacks or did nothing to stop them so that they could wage war in the Middle East. In Korea, prior to the outbreak of COVID-19, there existed political conflicts between conservative and progressive sectors. Such conflicts have manifested as various conspiracy theories after the outbreak of COVID-19. For example, on Pen and Mike TV, a YouTuber channel, a conservative YouTuber (Jeong Gyu-jae) said, “I have doubts whether Corona 19 is actually a dangerous disease [6].” “There are 300 deaths, being less serious than cold, influenza, and pneumonia, with more than 2000 deaths. Corona 19 is only a disease of the level of a seasonal cold, and the government is using it politically [3].” Other conspiracy rumors about COVID-19 in Korea have included: (1) that a person can get infected by going somewhere (e.g., a medical institution, restaurant, etc.) where a confirmed patient had visited, (2) that eating Chinese kimchi can cause infection, (3) that a mother and daughter who were confirmed to have been infected on a trip to Jeju Island were the family of the Vice Minister of the Ministry of Public Administration and Security, (4) that a necklace that generates chlorine dioxide is effective for preventing COVID-19, and (5) that the government recommends that medical staff wear regular gowns rather than full-body protective clothes. The Korean government clarified that this fake information was not true [7]. Previously, such conspiracy theories were thought to be believed by smaller groups of people, but more recently they have been gaining attraction with the general public. Thus, Miller et al. [3] argue that most people believe at least one conspiracy theory; conspiracy theories are not solely the domain of extremists and paranoid individuals. Based on nationally representative surveys, Oliver and Wood [8] show that most Americans consistently believe some conspiratorial story about a current political event or phenomenon.