You should not use
<title> here. The title should be used to describe the image, if that makes sense for someone that can't see the image. In this case, it is obvious that the icon itself doesn't need any description. But the message it brings to people who can see it, is what you should focus on. When the image isn't visible (for either a human or technical reason) is it still relevant to provide this message to the user? If the answer is yes, support the image with a label. If this takes too much space, you can for example create a tooltip for it (not using title attributes/elements!) and hide it in a way a screen reader will still read it (see this technique). I would probably add a button with an (?) or (i) icon to open the tooltip on touch or click.
You can also point the icon to the label/message/tooltip using the
aria-describedby attribute. It takes some testing to know what is the best approach.