A warning sign with exclamation mark in a rounded triangle.

Alert Icon

A warning sign with an exclamation mark and a 404 error icon.

404 With Warning Sign

A warning sign with exclamation mark in a triangle.

Two warning icons: an exclamation mark and a cross inside a square.

Three overlapping warning icons, two with Xes and one with an exclamation mark.

Two test tubes with liquid and a warning icon of an exclamation mark inside a triangle.

A warning sign with an exclamation mark in a triangle with curved edges.

Icons representing a virus or malware, such as a magnifying glass with a bug and warning symbol with an exclamation mark.

A computer screen with a bug search icon and a warning symbol with an exclamation mark.