"On Tuesday, security firm Cleafy reported that TeaBot was back. This time, the trojan spread through a malicious app called QR Code & Barcode Scanner, which as the name suggests, allowed users to interact with QR codes and barcodes. The app had more than 10,000 installations before Cleafy researchers notified Google of the fraudulent activity and Google removed it."
"At the Seco Innovation Laboratory in Fagersta, Sweden, R&D technician Jan Gravningsbråten, could easily be mistaken for a mad scientist, surrounded by blinking red lasers, trays of inserts under observation, diagnostic equipment and countless other measuring devices, all in aid of his ongoing work with data matrix codes, also known as QR codes."