Links

https://telescope.ac/petazzoni/mayhem-the-rf-pentesting-hackrf-portapack-firmware

https://play.google.com/store/apps/details?id=com.yuanwofei.cardemulator.pro&hl=en&gl=US

https://twitter.com/liamosaur/status/1296305262144364544

https://cacm.acm.org/news/246744-picking-locks-with-audio-technology/fulltext

https://www.pentestpartners.com/security-blog/breaking-samsung-firmware-or-turning-your-s8-s9-s10-into-a-diy-proxmark/