So far as the principal obligor has the right of revocation, rescission or termination against the obligee, the surety may refuse to perform the obligation against the obligee.
Civil Act — Article 435 (Surety and right to revocation of principal obligor)
민법 제435조
For AI agents and developers — get this article as JSON, with the English and current Korean effective dates and an outdated-translation flag, from the korea-law API or as an MCP tool:
https://mcp.apify.com?tools=kr-data/korea-law