The employees connected a DSLR body to a Canon 400mm f/2.8 IS II lens with the shutter set to six seconds. In that short amount of time, the sun began to melt the inside of the camera. They held it longer afterward, and the camera began to smoke.
It's an extreme example, of course. You aren't guaranteed to instantly destroy your camera just by pointing the camera up. You don't need the shutter set for six seconds to shoot the brightest thing in the universe. (Some cameras allow light in during various preview or live view modes.) And yes, that's a huge, expensive lens, and it's pointed directly at the sun instead of a wide-angle landscape. Nonetheless, the point stands. The sun is capable of harming cameras in certain situations. Even a small amount of this kind of damage isn't going to do your camera any favors.