By Sangyeon Park — creator of Cencurity , an open-source security gateway for LLM coding agents In March 2026, Veracode published its Spring GenAI Code Security Update. The team ran more than 150 large language models through 80 code-generation tasks in Java, JavaScript, C#, and Python, then tested every output against four common weakness categories. The syntax was excellent. Over 95% of the generated code compiled and ran. The security was not. Forty-five percent of it contained a k...