It suggests that liquid has reached beyond the ordinary wipeable surface. Stop use where electrical parts or concealed connections may be involved.
What the observation means
A spill through a perimeter gap is different from condensation on a pan lid. Do not open the hob underside or reach into wet equipment to identify the route.
A useful next step
Record the spill and visible location from a safe position. Obtain appropriate appliance or installation assessment. Do not simply dry the cupboard and restart, add sealant around the top or heat the hob to evaporate moisture inside.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.