recaptcha

     I don't know if this is the best forum for this, but it seems to be the only one. Yesterday I was offered a recaptcha with Hebrew characters in it. I have been offered a recaptcha with Greek characters in the past. I reloaded the page with the Hebrew character recaptcha, and that solved the problem, although it might have meant that any data I had entered would need to be resubmitted. A waste of my time, in other words. When I was offered the recaptcha in Greek characters, since I couldn't type in the Greek characters, I simply typed what seemed the most similar--and my submission was accepted--a possible security flaw in the recaptcha process, as well as a nuisance.
     The recaptcha website explains that recaptcha is mining old books for words.  Many older English works will have quotations in Greek, which was once commonly taught to anyone with academic credentials. Quotations from the Hebrew, or at least citations containing the originals of  translations from the Hebrew, are fairly common in religious works.
     If you are not familiar with characters from other alphabets, see the dictionary end pages, or the entry for "alphabet"--or search "alphabets". There are several of them in use around the globe.
     I don't know how the makers of recaptcha will learn to filter out the characters from different alphabets. Using pictures of words that cannot be read by a machine is the whole point. But someone certainly needs to work on it.