What
Feint
attacks first.
Feint starts where a real attacker would start in your stack, then chains what it finds.
01
Prompt injection
Hides instructions in the emails, tickets and documents your model reads as user content.
02
Tool-call abuse
Drives the model to call its tools with arguments your team never intended.
03
Cross-tenant retrieval
Queries your retrieval layer until another tenant’s data shows up in an answer.
04
System prompt leakage
Extracts internal instructions and the secrets people tend to leave inside them.
![](data:image/svg+xml,<svg display="block" id="7759560" role="presentation" viewBox="0 0 93 28" xmlns="http://www.w3.org/2000/svg"><path d="M 12 0 C 18.627 0 24 5.373 24 12 C 24 18.627 18.627 24 12 24 C 5.373 24 0 18.627 0 12 C 0 5.373 5.373 0 12 0 Z M 12 3 C 7.029 3 3 7.029 3 12 C 3 16.971 7.029 21 12 21 C 16.971 21 21 16.971 21 12 C 21 7.029 16.971 3 12 3 Z" fill="rgb(19, 22, 20)" height="24px" id="NLhRXb22n" transform="translate(2 2)" width="24px"/><path d="M 0 4.5 C 0 2.015 2.015 0 4.5 0 C 6.985 0 9 2.015 9 4.5 C 9 6.985 6.985 9 4.5 9 C 2.015 9 0 6.985 0 4.5 Z" fill="rgb(19, 22, 20)" height="9px" id="oUswHn69I" transform="translate(9.5 9.5)" width="9px"/><path d="M 0 3 C 0 1.343 1.343 0 3 0 C 4.657 0 6 1.343 6 3 C 6 4.657 4.657 6 3 6 C 1.343 6 0 4.657 0 3 Z" fill="rgb(19, 22, 20)" height="6px" id="Glvpnl45g" transform="translate(20.5 3.5)" width="6px"/><path d="M 6.321 16.548 C 5.313 16.548 4.417 16.391 3.633 16.076 C 2.849 15.761 2.188 15.33 1.648 14.784 C 1.109 14.238 0.7 13.612 0.42 12.905 C 0.14 12.198 0 11.452 0 10.668 L 0 10.185 C 0 9.387 0.143 8.628 0.43 7.907 C 0.717 7.186 1.137 6.552 1.691 6.006 C 2.243 5.46 2.912 5.03 3.696 4.715 C 4.48 4.4 5.355 4.242 6.321 4.242 C 7.315 4.242 8.2 4.4 8.977 4.715 C 9.755 5.03 10.416 5.46 10.962 6.006 C 11.508 6.552 11.928 7.186 12.222 7.907 C 12.516 8.628 12.663 9.387 12.663 10.185 L 12.663 10.668 C 12.663 11.452 12.523 12.198 12.243 12.905 C 11.963 13.612 11.553 14.238 11.014 14.784 C 10.475 15.33 9.814 15.761 9.03 16.076 C 8.246 16.391 7.343 16.548 6.321 16.548 Z M 6.321 13.713 C 6.979 13.713 7.525 13.573 7.959 13.293 C 8.393 13.013 8.725 12.621 8.956 12.117 C 9.187 11.613 9.303 11.053 9.303 10.437 C 9.303 9.779 9.184 9.202 8.946 8.705 C 8.708 8.208 8.368 7.812 7.927 7.518 C 7.486 7.224 6.951 7.077 6.321 7.077 C 5.705 7.077 5.173 7.224 4.725 7.518 C 4.277 7.812 3.937 8.208 3.706 8.705 C 3.475 9.202 3.36 9.779 3.36 10.437 C 3.36 11.053 3.472 11.613 3.696 12.117 C 3.92 12.621 4.256 13.013 4.704 13.293 C 5.152 13.573 5.691 13.713 6.321 13.713 Z M 14.385 16.149 L 14.385 4.641 L 17.052 4.641 L 17.052 9.576 L 16.989 9.576 C 16.989 7.952 17.336 6.699 18.029 5.817 C 18.722 4.935 19.726 4.494 21.042 4.494 L 21.483 4.494 L 21.483 7.392 L 20.643 7.392 C 19.719 7.392 19.005 7.64 18.501 8.137 C 17.997 8.634 17.745 9.352 17.745 10.29 L 17.745 16.149 Z M 29.673 16.527 C 28.735 16.527 27.909 16.328 27.195 15.929 C 26.481 15.53 25.921 14.952 25.515 14.196 C 25.109 13.44 24.892 12.516 24.864 11.424 L 25.263 11.424 L 25.263 16.149 L 22.596 16.149 L 22.596 0.819 L 25.956 0.819 L 25.956 8.61 L 25.158 9.618 C 25.2 8.456 25.421 7.48 25.82 6.689 C 26.219 5.898 26.768 5.303 27.468 4.904 C 28.168 4.505 28.966 4.305 29.862 4.305 C 30.646 4.305 31.357 4.449 31.994 4.736 C 32.631 5.023 33.173 5.429 33.621 5.954 C 34.069 6.479 34.416 7.098 34.661 7.812 C 34.906 8.526 35.028 9.303 35.028 10.143 L 35.028 10.605 C 35.028 11.445 34.906 12.222 34.661 12.936 C 34.416 13.65 34.059 14.277 33.59 14.816 C 33.121 15.355 32.557 15.775 31.899 16.076 C 31.241 16.377 30.499 16.527 29.673 16.527 Z M 28.791 13.713 C 29.365 13.713 29.865 13.573 30.292 13.293 C 30.719 13.013 31.052 12.618 31.29 12.107 C 31.528 11.596 31.647 11.018 31.647 10.374 C 31.647 9.716 31.528 9.142 31.29 8.652 C 31.052 8.162 30.719 7.781 30.292 7.508 C 29.865 7.235 29.365 7.098 28.791 7.098 C 28.287 7.098 27.811 7.217 27.363 7.455 C 26.915 7.693 26.554 8.033 26.281 8.474 C 26.008 8.915 25.872 9.45 25.872 10.08 L 25.872 10.857 C 25.872 11.459 26.015 11.974 26.302 12.401 C 26.589 12.828 26.957 13.153 27.405 13.377 C 27.853 13.601 28.315 13.713 28.791 13.713 Z M 37.275 16.149 L 37.275 4.641 L 40.635 4.641 L 40.635 16.149 Z M 35.742 7.119 L 35.742 4.641 L 40.635 4.641 L 40.635 7.119 Z M 38.577 3.507 C 37.947 3.507 37.482 3.342 37.181 3.014 C 36.88 2.684 36.729 2.268 36.729 1.764 C 36.729 1.246 36.88 0.822 37.181 0.494 C 37.482 0.165 37.947 0 38.577 0 C 39.207 0 39.673 0.165 39.974 0.494 C 40.275 0.822 40.425 1.246 40.425 1.764 C 40.425 2.268 40.275 2.684 39.974 3.014 C 39.673 3.342 39.207 3.507 38.577 3.507 Z M 51.45 20.349 L 51.45 12.747 L 52.353 11.529 C 52.325 12.565 52.118 13.457 51.733 14.206 C 51.348 14.955 50.813 15.529 50.127 15.928 C 49.441 16.327 48.636 16.527 47.712 16.527 C 46.914 16.527 46.186 16.376 45.528 16.075 C 44.87 15.774 44.306 15.361 43.837 14.836 C 43.368 14.311 43.011 13.692 42.766 12.978 C 42.521 12.264 42.399 11.494 42.399 10.668 L 42.399 10.185 C 42.399 9.359 42.528 8.589 42.787 7.875 C 43.046 7.161 43.417 6.538 43.9 6.006 C 44.383 5.474 44.957 5.057 45.622 4.756 C 46.287 4.455 47.026 4.305 47.838 4.305 C 48.79 4.305 49.612 4.511 50.305 4.924 C 50.998 5.337 51.541 5.932 51.933 6.709 C 52.325 7.486 52.535 8.435 52.563 9.555 L 52.164 9.555 L 52.164 4.641 L 54.831 4.641 L 54.831 20.349 Z M 48.699 13.692 C 49.217 13.692 49.689 13.577 50.116 13.346 C 50.543 13.115 50.886 12.775 51.145 12.327 C 51.404 11.879 51.534 11.34 51.534 10.71 L 51.534 9.933 C 51.534 9.317 51.401 8.799 51.135 8.379 C 50.869 7.959 50.519 7.637 50.085 7.413 C 49.651 7.189 49.189 7.077 48.699 7.077 C 48.125 7.077 47.617 7.221 47.176 7.508 C 46.735 7.795 46.389 8.187 46.137 8.684 C 45.885 9.181 45.759 9.765 45.759 10.437 C 45.759 11.095 45.885 11.669 46.137 12.159 C 46.389 12.649 46.735 13.027 47.176 13.293 C 47.617 13.559 48.125 13.692 48.699 13.692 Z" fill="rgb(19, 22, 20)" height="20.348999828338624px" id="WSJtQOYB0" transform="translate(36.999 5.511)" width="54.83099826049806px"/></svg>)
© 2026 Feint, Inc.
SOC 2 in progress · HIPAA · GDPR · Made in Framer