Security on Kiefer Land https://kieferland.dev/tags/security/ Recent content in Security on Kiefer Land Hugo en-US Fri, 28 Aug 2026 00:00:00 -0700 Four Surfaces, One Agent: What the Testing Framework Missed Until I Tested the UI https://kieferland.dev/writing/four-surfaces-one-agent/ Fri, 28 Aug 2026 00:00:00 -0700 https://kieferland.dev/writing/four-surfaces-one-agent/ The AI/LLM testing framework passed at every layer this week. The live chat window still leaked. What four rounds of testing on the same agent actually found.