Ukukhusela iiwebhsayithi kubadlali bahlaseli, abalinganiswa abancinci ngexesha
I-CAPTCHA uvavanyo olufutshane lwe-intanethi olulula ukuba abantu badlule kodwa kunzima kwiiprogram ze-software ze-robotic ukugqiba-ngoko ke igama loqobo lovavanyo, uvavanyo olupheleleyo ngokuzenzekelayo loluntu ukuxela iikhomputha kunye nabantu ngaphandle . Injongo yeCAPTCHA kukudambisa abacuki kunye ne-spammers ekusebenziseni iinkqubo zesoftware zokuzalisa ngokuzenzekelayo kwiwebhusayithi.
Kutheni i-CAPTCHA iyimfuneko?
I-CAPTCHA zivimbela abagculeli ekusebenziseni kakubi iinkonzo ze-intanethi.
I-Hackers kunye ne-spammers bazama imisebenzi engekho emthethweni ye-intanethi, kuquka:
Ukuhambisa i-poll ye-intanethi ngokuthumela ngokuzenzekelayo amakhulu empendulo yamanga
Amandla e-Brute evula i-akhawunti ye-intanethi ngokuzama ngokuphindaphindiweyo amaphasiwedi ahlukeneyo
Ukubhalisela ama-akhawunti e-imeyile ekhululekile
Ugaxekile amabhulogi kunye neendaba zeendaba kunye namazwana amaninzi kunye neenjini ze-injini zokukhangela
Ukudweba (ukukopisha) iidilesi ze-imeyile zabantu kwiwebhsayithi, ukuzisebenzisa emva kokuhlaselwa kogaxekile
Ukukhohlisa imbewu yeengcambu kunye nempendulo emihle ukwenzela ukunyanzela abantu ukukhuphela i-trojan payload
Iimvavanyo ze-CAPTCHA zinokumisa amaninzi amaninzi, ukuhlaselwa ngokuzenzekelayo ngokukhusela isofthiwe ye-robot ekuhambiseni izicelo ze-intanethi. Zisetyenziswe rhoqo xa abanikazi bewebhusayithi benokusebenzisa iteknoloji ukuvimba ulwazi lwe-spammy kwindawo yokuqala, kunokuya kucoca loo mxholo emva kokuba yongezwa. Abanye abasebenzisi bewebhu, umzekelo, khusela i-CAPTCHA ukunciphisa ukuxhatshazwa komsebenzisi kwaye kunoko sebenzisa izilungiso zokuskena nokubeka uphawu lokumangalisa izimvo okanye i-akhawunti emva kokuba zenziwe.
I-CAPTCHA Isebenza njani?
I-CAPTCHA isebenza ngokukucela ukuba uthayiphe ibinzana ukuba i-robot iya kuba nzima ukuyifunda. Ngokuqhelekileyo, ezi binzana ze-CAPTCHA ziyimifanekiso yamagama atshaywayo, kodwa abantu abangabonakaliyo nabo bangaba lirekhodi yezwi. Le mizobo kunye nokurekhoda kunzima kwiinkqubo zesofthiwe eziqhelekileyo ukuqonda, kwaye ngoko ke, iirobhothi ayinakukwazi ukuthayipha ibinzana ngokuphendula umfanekiso okanye ukurekhoda.
Njengezixhobo zobulumko ezikhulayo, i-spam bots zikhula ngakumbi, ngoko ke i-CAPTCHA ziguqukela ngokukrakra njengempendulo.
Ngaba i-CAPTCHA iphumelele?
Iimvavanyo ze-CAPTCHA zivimba ngokukhawuleza ezininzi ukuhlaselwa okuzenzekelayo, oko kutheni zixhaphake. Akunalo iingxaki zabo, nangona kunjalo, kubandakanywa ukutyekisa abantu abamele baphendule.
I-software ye-Re-CAPTCHA ye-Google-inkqubo elandelayo ye-CAPTCHA iteknoloji-isebenzisa indlela eyahlukileyo. Izama ukuqikelela ukuba iseshoni yaqaliswa ngumntu okanye i-bot ngokuhlola indlela yokuziphatha xa iphepha lithwala. Ukuba ayikwazi ukuxelela umntu emva kwebhodibhodi, inikeza uhlobo oluthile lovavanyo, mhlawumbi "nqakraza apha ukubonisa ukuba ungumntu" ibhokisi okanye iphazili ebonakalayo esekelwe kwisithombe seGoogle Images okanye ibinzana elikhishwe kwiGoogle Iincwadi. Kuvavanyo lwezithombe, ucofa zonke iinxalenye zomfanekiso oqulethe uhlobo oluthile lento, njengomqondiso wesitalato okanye imoto. Phendula ngokufanelekileyo, kwaye uqhubeka; uphendule ngokungalunganga, kwaye unikwe enye iphazili yomfanekiso ukulungisa.
Abanye abathengisi banikela iteknoloji esusa inxalenye "yokuvavanya" yeCAPTCHA ngokunika okanye ukukhanyela ukufikelela kwiwebhusayithi kuphela kwiinkqubo ezithile ezihambelana nomzekelo wokusebenzisana kwiseseshoni yewebhu.
Ukuba isofthiwe yezokhuseleko ikhangeleka akukho mntu uqhuba iseshoni, iphika ngokukhawuleza uxhulumaniso. Ngaphandle koko, unikeza ukufikelela kwiphepha eliceliwe ngaphandle kovavanyo oluphakathi okanye imibuzo.