Ka taƙaita labarin:  Katin SIM wanda ya taimaka ya kawo sauyi a masana'antar wayar hannu a farkon zamanin wayoyin mota masu girma yanzu yana gab da cika shekaru 25 da haihuwa. Amma yayin da wayoyin hannu da ake amfani da su sun haɓaka kuma sun samo asali sosai a wannan lokacin, SIMs har yanzu suna kama da juna - kodayake ƙarami - kuma har yanzu suna cikin na'urori. Wani masanin kimiyyar kwamfuta na Cambridge ya yi imanin cewa kwanakin kananan kwakwalwan kwamfuta sun ƙidaya kuma ya kamata mu shiga cikin wayoyinmu kamar yadda muke shiga cikin asusun yanar gizo. Dokta Markus Kuhn daga Jami'ar Cambridge ya ce an maye gurbin SIM (hoton hoto) da dadewa. Ya yi imanin madadin sun hada da buga a cikin wani mai amfani ID da kuma kalmar sirri kai tsaye a cikin wani waya. "Gaskiyar ita ce, da an maye gurbin katin SIM tun da daɗewa da wani zaɓi mafi sauƙi: buga mai amfani da lambar mai amfani da kalmar sirri kai tsaye a cikin wayar wani zaɓi ne - kamar yadda muke yi don samun damar WiFi", in ji Dokta Markus Kuhn daga Jami'ar Cambridge. Ko QR code - murabba'i, 3D barcodes - ne mafi m madadin ga wayoyin salula na zamani da kyamarori, inda wani app iya karanta cikakken bayani encoded a cikin QR kai tsaye daga kamara. Dokta Kuhn ya ci gaba da cewa: "Katin SIM abu ne mai amfani lokacin da suka shigo kasuwa a 1991. "A lokacin wayoyin hannu manyan na'urori ne, galibi ana saka su a cikin motoci [kuma] SIM zai taimaka wa abokan ciniki da sauri da sauƙi canja wurin lambar wayar su da lambobin tuntuɓar su daga waya ɗaya zuwa na gaba, ba tare da buƙatar buga dogon masu ganowa da lambobin shiga kowane lokaci ba. A madadin haka, lambobin QR (misali a hoto) hanya ce mai dacewa don adanawa da samun damar bayanai ta amfani da kyamarar wayo. 'Amma kwanakin manyan wayoyin hannu ko motocin haya sun shude, kuma a yau wayoyin salula masu sauƙi ne, na'urori na sirri waɗanda muke ba da kalmar sirri ga shafuka da ayyuka da yawa - samun damar WiFi, imel, hanyoyin sadarwar jama'a, shagunan aikace-aikace, da sayayya ta kan layi.' Ya yi imanin maye gurbin SIMs tare da kalmomin shiga ko ƙarin software zai sauƙaƙa samun kwangilar biyan kuɗi da yawa daga masu ba da sabis daban-daban a kan waya ɗaya. Daga baya za su iya...
Dokta Markus Kuhn ya ce an maye gurbin SIM ɗin tun da daɗewa. Ya yi imanin cewa wani zaɓi zai iya zama buga a cikin mai amfani ID da kuma kalmar sirri kai tsaye a cikin wani waya - kamar yadda muka yi da Wi-Fi networks. Ko kuma za a iya sanya bayanai a cikin lambobin QR da aka dauka ta hanyar kyamarar wayar. Malamin Jami'ar Cambridge ya kuma yi imanin cewa lokaci ne da ya dace a sauya saboda ci gaban da aka samu a fasahohin boye-boye.