Why not? Seems like a pretty clear shot of three of his fingers and a good partial print of his thumb. I assume the original was higher resolution than the version in the article.

The CCC made a point a couple years ago by publishing finger prints of high ranking German government officials extracted from photos

I think they went even further and 3d printed their thumbprint and unlocked their phone with it, if I remember correctly.

Just change your thumbprint after a leak, no problem.

A dedicated criminal wouldn’t have fingerprints.

Fingerprint tech is ridiculously advanced. I saw a documentary where they lifted a print off a pillow case decades later.

I did fingerprints from a digital photo in 2012 maybe earlier. Old mate was holding up drugs to be photographed. Bit of contrast, blew it up, sent it to fingerprint bureau and what would you know, we had those prints on file. Not the crime of the century and not absolute proof, but a damn good start for a case from a simple post on socials. More useful than most intel/hearsay that ends up in crimestoppers or similar channels.

No longer a friend?

"Old mate" is an Australian/NZ colloquial term for someone who you either don't know or don't want to name.