Enlarge (credit: Getty Images) In online crime forums, specialization is everything. Enter YTStealer, a new piece of malware that steals authentication credentials belonging to YouTube content creators. “What sets YTStealer aside from other stealers sold on the Dark Web market is that it is solely focused on harvesting credentials for one single service instead of grabbing everything it can get ahold of,” Joakim Kennedy, a researcher at security firm Intezer wrote in a blog post on Wednesday.