The Upsurge of Digital Fingerprints in Underground Marketplaces

The report details SIRIUS Shop, a Russian underground marketplace active since June 2020 that sells over 20,000 stolen digital profiles — including browser fingerprints, cookies, logins, credit card data, dumps and identity documents — harvested via malware, rogue browser extensions, web injects and form-grabbers; the marketplace indexes profiles for targeted fraud and advertises prices ranging from $1–$27. It highlights the fraud risk to online payment portals, e-banking and social media accounts and provides preventive advice for site owners and users.