Cybercriminals have adopted a novel trick for infecting devices with malware: sending out physical letters that contain malicious QR codes.
Switzerland’s National Cyber Security Centre (NCSC) has issued a warning to the public about letters sent through the post that pretend to come from the Swiss Federal Office of Meteorology and Climatology (MeteoSwiss) that encourage recipients to scan a QR code.
The letters claim that scanning the QR code will install a new severe weather app onto their An