Episode 5 of our PIX video series delves into the crucial aspect of ensuring security and integrity within the system. We explore the robust measures put in place to safeguard against external attacks and minimize risks to national switches. From stringent rules imposed on PSPs to proven systems like the National Financial System Network, which has demonstrated its safety over more than two decades, we examine the layers of protection that uphold the integrity of PIX. Additionally, we shed light on the meticulous onboarding process for participants, emphasizing the rigorous operational tests and compliance requirements they must meet to ensure a seamless and secure user experience.