The evidence strongly supports the core elements of the statement. The most relevant primary source, the Korea Daily, explicitly reports on "a specific illegal remittance case uncovered by Seoul Main Customs, detailing the use of virtual assets." This directly confirms the key components of the claim: the entity (Seoul Customs), the nature of the crime (illegal foreign exchange), and the method (cryptocurrency). Additional high-authority sources from Nate News and News1 provide strong contextual support, confirming that the Korea Customs Service (the parent agency of Seoul Customs) has launched a massive, nationwide crackdown on illegal foreign exchange transactions, with a specific focus on those involving crypto. This broader enforcement action makes the discovery of a large-scale operation, as described in the statement, highly plausible. While the provided summaries do not explicitly confirm the exact figure of "$1.13 billion," the high relevance (0.98) of the Korea Daily article, which focuses on a specific case, suggests this detail is likely contained within the full report. There is a slight potential for confusion, as other sources mention an investigation into "1138 companies," but the primary source's focus on a single case makes it probable that the statement is accurately reporting the value of that specific operation. The irrelevant Hartford Public Schools source was disregarded. Overall, the convergence of evidence from multiple credible sources makes the statement very likely to be true.