I'm baffled... I've read the existing posts about this error message, but they don't apply. I've been uploading images to WP since spring without ever seeing this message. Recently I created a second blog and bought a domain http://shapersofthe80s.com and since then about half the images I try to upload receive this "security" warning, but I can't detect any consistency. I've scanned some using Photostudio, some with Omnipage (the free Photoshop Elements that came with the Canon scanner has stopped working for no clear reasons (no mention of it being a limited trial and there's no way you can EVER get through to Adobe support), which is a shame because its images were always acceptable.)
I'm using a Mac and it's clear the .png format won't upload now (though it has in the past), but the solution I've found for them and for scanned images which *say* they're created in .jpeg format but won't upload, is to take a grab of them onscreen then convert them to .jpeg, then they do upload. What a tedious doubling of effort! What has happened since I bought a domain? Any clues please?
The blog I need help with is shapersofthe80s.com.