Indonesia is one of the countries experiencing the COVID-19 pandemic. This causes anxiety for the Indonesian people which makes information about COVID-19 becomes crucial. Objective: This research was conducted with the aim of studying philosophical theories that can play a role in the process of testing information in warding off hoaxes about COVID-19. Researchers want to know whether the theory of philosophy of science can be of assistance to the public in recognizing and rejecting hoax news about COVID-19. Methods: The research was conducted using a descriptive verification method with a qualitative approach. The data from this study were taken from interviews and secondary data was taken by studying the literature. Interview data were taken with the target respondents, namely people in Surabaya with an age range of 25-40 years or what is often referred to as generation Y or millennials. The criteria for determining the number of respondents were taken until the researcher found a saturated sample. Meanwhile, the literature study data consists of 2 books, 37 articles, 1 website, and 1 report on the results of a national survey. Results: This study found 5 types of theory of truth, namely coherence theory, correspondence theory, pragmatic theory, consensus theory, and performative theory, each of which has a use in identifying hoaxes around COVID-19. Research Recommendation: Further research needs to be conducted which can test the actual practice of applying truth theories in countering hoaxes in the community at a certain scale. Limitations: This research has little chance of being applied by some Indonesians, given their low level of digital literacy and willingness to seek information.