What are the security risks to displaying an image loaded over http in a page loaded over https?

I’m developing a PWA in which part of the app displays the content of emails to the user. However, many of the image URL’s that are in the emails come from http domains, and therefore do not load in a PWA (because PWAs only l… Continue reading What are the security risks to displaying an image loaded over http in a page loaded over https?

Is it possible to retrieve embedded information in a printed image with steganography?

If I print the following noise texture image in which I’ve embedded some information with steganography, can I retrieve the information back or can I detect the information loss occurred due to degradation of quality in print… Continue reading Is it possible to retrieve embedded information in a printed image with steganography?