One downside of shifting to a post-PC world is the inevitable development and refinement of post-PC malware. Technology Review this week spoke with security researchers who say that they’re seeing an upgrade in both the quantity and sophistication of mobile malware attacks as hackers try to create a winning formula for distributing malware to mobile devices. At the moment, the researchers say that cybercriminals are experimenting with injecting malware into popular mobile websites and quietly installing it onto users’ devices whenever they visit compromised pages. Chris Astacio, a researcher at security company Websense, tells Technology Review that while he was reverse engineering the latest version of the Blackhole malware that was recently found on NBC websites, he discovered that it “now specifically looks out for iPhones, iPads, and Android devices.”