From Eightball - "I suspect you are using google chrome and they have changed their security settings warnings about suspect links. You cannot get infected by a picture. You may want to either 1) change the settings or 2) if given choice, say ok if image is called from other sites. You can tell member who is linking images from other sites not to, or change your settings so it is not giving alerts that are unnecessary. You cannot get a virus viewing an actual image."
From mouse - If the only time you get a malware warning is on the Hill while using your Chrome browser .. here are the instructions for disabling the phishing and malware detection settings:
Depending on your browsing habits and where you travel on the internet .. please be careful about changing the phishing and malware detection settings.