Fortune Exclusive: AI cybersecurity startup RunSybil, founded by OpenAI's first security hire, raises $40 million led by Khosla Ventures

html<table style="border-collapse: collapse; font-size: 13px; width: 100%; margin: 0 auto;">
  <thead>
    <tr>
      <th style="border: 1px solid black; padding: 4px 6px;"></th>
      <th style="border: 1px solid black; padding: 4px 6px;">Delta TPs</th>
      <th style="border: 1px solid black; padding: 4px 6px;">Full TPs</th>
      <th style="border: 1px solid black; padding: 4px 6px;">Total TPs</th>
      <th style="border: 1px solid black; padding: 4px 6px;">Likely FPs</th>
      <th style="border: 1px solid black; padding: 4px 6px;">Likely FP Rate</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td style="border: 1px solid black; padding: 4px 6px;">Claude<br>Code</td>
      <td style="border: 1px solid black; padding: 4px 6px;">44 / 46<br>(95.7%)</td>
      <td style="border: 1px solid black; padding: 4px 6px;">19 / 50<br>(38.0%)</td>
      <td style="border: 1px solid black; padding: 4px 6px;">62 / 95<br>(65.3%)</td>
      <td style="border: 1px solid black; padding: 4px 6px;">48</td>
      <td style="border: 1px solid black; padding: 4px 6px;">43.6%</td>
    </tr>
    <tr>
      <td style="border: 1px solid black; padding: 4px 6px;">Codex<br>(GPT-5.5)</td>
      <td style="border: 1px solid black; padding: 4px 6px;">43 / 45<br>(95.6%)</td>
      <td style="border: 1px solid black; padding: 4px 6px;">30 / 50<br>(60.0%)</td>
      <td style="border: 1px solid black; padding: 4px 6px;">74 / 95<br>(77.9%)</td>
      <td style="border: 1px solid black; padding: 4px 6px;">629</td>
      <td style="border: 1px solid black; padding: 4px 6px;">89.5%</td>
    </tr>
  </tbody>
</table>
<p style="font-size: 12px; font-style: italic; margin-top: 8px;">Table 2: True positive (TP) and false positive (FP) analysis of Claude and Codex across challenge types.</p>