DeepSeek v4.1 Flash Is Now Our Best Hacking Model

DeepSeek v4.1 Flash demonstrated that a low-cost AI agent can autonomously perform sophisticated multi-step exploitation against vulnerable systems, achieving code execution across all 11 targets for less than $5 in accepted runs. For CIOs and technology leaders, the strategic takeaway is that AI is rapidly becoming a force multiplier in both offensive and defensive security, making it essential to harden environments, validate controls against agentic attack paths, and improve how security benchmarks measure real-world risk rather than just end outcomes.