In advice that applies to all actors, both union and nonunion, the Screen Actors Guild is urging actors to protect their headshots.

Currently on the homepage of SAG's website is a photo with the warning "Protect your likeness and image," which links to a list of 11 tips for "guarding your reputation and headshot." The site also contains links to other pages discussing such security issues as audition scams, identity theft, and the unauthorized sale of headshots online.