I've got a question about the  'storing hidden files to images' feature - not to be confused with storing your private 'keys to image' feature.

The main weakness to this feature in my opinion is the amount of trust it requires, because if you don't trust the counterparty then you obviously can't know for sure if they send you an image with a virus included.

Is there any safe loophole to work around this issue?
Could we use imgur or something like that to help?