THORChain has temporarily closed the source code for its signing library following a security exploit that occurred several months ago. The decision was made to allow the protocol's security team to conduct a comprehensive investigation and deeper analysis of the vulnerability without external interference. CBarraford clarified that the signing library has historically been open source and the current restriction is a temporary measure specifically tied to the ongoing security review. The team intends to maintain the closed-source status only as long as necessary to complete their in-depth security assessment before potentially returning to full transparency.