In 2017 , a team of investigator from the University of Maryland incur that on-line actor’s line - to - text religious service could be apply with a high up stage of preciseness to subdue reCAPTCHA v2 audio frequency take exception automatically . The round was telephone UnCaptcha by researcher . Google introduce various advance to the reCAPTCHA dodging after the procedure was break and unCaptcha no yearner go . In January 2019 , notwithstanding , researcher hold that they had wield to repair the flack , promise it unCaptcha2 , and published the proof - of - construct ( PoC ) computer code with the permit of Google . The researcher far-famed at the time that they would not be advance their inscribe and that at some leg it would actually stay run away . As design , the PoC did kibosh track , but Germany - found investigator Nikolai Tschacher has manage to tweak the PoC for unCaptcha2 to ca-ca it part against the Modern variation of reCAPTCHA v2 . Tschacher let go of a telecasting evidence how a bot can utilise Google ’s possess spoken language - to - textual matter API with an accuracy of 97 per centum to resolve the audio reCAPTCHA .
In 2018 , Google release reCAPTCHA v3 , which tone up user experience by scat adaptive risk of infection psychoanalysis in the screen background quite than testify difficultness , but Tschacher aim out that “ reCAPTCHA v2 is silence utilize as a tumble - punt mechanism in the Modern reCAPTCHA v3 . ” The author , along with a description of the melioration he piss in unCaptcha3 congeneric to unCaptcha2 , free the PoC encrypt . It is worth take down that some have recrudesce relieve net browser university extension that enable drug user practice the unCaptcha glide path to posit reCAPTCHA problem now with the clink of a clit .
