Why do phishing attackers not alter the reference image along with the PGP signature and other content?

I don´t really understand the tech behind that. I don´t understand how the image is not changed by the ones who want to steal from you but the rest of the pgp signature match the phishing site.
The image is from a darknet market and all of… Continue reading Why do phishing attackers not alter the reference image along with the PGP signature and other content?