Markaad saxiixday bogga internetka, ama aad gelayso macluumaadka xasaasiga ah, waxaa laga yaabaa in mararka qaarkood lagu weydiiyo inaad gujiso sanduuqa saxanka ah, sawirada isku dhejinta, ama aad ku qorto taxane lambaro iyo xarfo ah.

Tan waxaa loo yaqaan CAPTCHA . Waxaa loogu talagalay in lagu joojiyo dhaqanka aan bini'aadamka ahayn ee internetka. Laakiin maxay taasi dhab ahaantii ka dhigan tahay? Oo CAPTCHA oo leh hal tallaabo oo fudud sida saxista sanduuqa runtii ma joojin kartaa bots-ka inay sameeyaan ficillada khadka tooska ah?

Aynu si qoto dheer u eegno waxa CAPTCHA yahay iyo sida loo isticmaalo in lagu keeno amniga intarneedka oo dhan.

Waa maxay CAPTCHA?^{(What Is CAPTCHA?)}

CAPTCHA waa erey la yaab leh oo si fudud loo fahmi karo jumlad - waxay u taagan tahay C si buuxda ^(C)A utomated P ublic T ing test si loogu sheego C omputers iyo H umans A qayb.

Marka, asal ahaan CAPTCHA , sida aan u naqaano onlaynka, waa imtixaan iswada si loo go'aamiyo in isticmaale uu yahay bini'aadam ama bot. Bot-ku wuxuu noqon karaa software otomaatig ah oo loogu talagalay in lagu dhejiyo faallooyinka spam online, bogag galmo xoog leh oo leh taxane sir ah, ama laga yaabee software isku daya inuu si toos ah u xoqo macluumaadka mareegaha kale. Adigoo isticmaalaya CAPTCHA , bots-yada waa laga joojin karaa inay sameeyaan hab-dhaqan toos ah oo sidan oo kale ah.

CAPTCHA waxay^(CAPTCHA) runtii noqon kartaa wax kasta, ilaa inta ay adeegsan karto nooc tijaabo ah oo lagu gudbi karo oo kaliya iyadoo loo fekerayo sida aadanaha. Waagii hore, nooca ugu caansan ee CAPTCHA wuxuu ahaan lahaa xarfo iyo lambaro taxane ah oo la isku daray oo ay isticmaalayaashu qori doonaan si ay ugu gudbaan imtixaanka.

Xarfaha waxaa lagu sawiray far aan xaq u lahayn, si ay ugu adkeyso nooc kasta oo software-ka ah in la akhriyo. Way shaqeysay, laakiin iyadoo AI ay sii xoogeysaneyso, amniga ay bixisay ayaa ahaa mid su’aal la iska weydiinayo sannadihii ay socdeen.

Maalmahan, CAPTCHA -ga ugu badan ee aad ku arki doontid online waxa ay ka timid Google , oo loo yaqaan re CAPTCHA . Waxaa jira siyaabo kale, laakiin waxaan u isticmaali karnaa Google 's sharaxaad ahaan sida ay u wada shaqeeyaan.

Noocyada reCAPTCHA & miyay shaqeeyaan?^{(The Types Of reCAPTCHA & Do They Work?)}

Google waxa ay soo martay sadex nooc oo waaweyn oo software reCAPTCHA ah hadda. Aynu eegno sida nooc kastaa uga duwan yahay midba midka kale iyo sida ay uga shaqeeyaan joojinta bots.

reCAPTCHA v1 - Imtixaanka qoraalka dhaqameed^{(– Traditional Text Test)}

ReCAPTCHA v1 asalka ah ayaa laga yaabaa inay hadda kuugu ekaato mid niyad-jab ah, taasna waxaa sabab u ah inaan hadda la isticmaalin, sabab wanaagsan. Habkani wuxuu u baahan doonaa dadka isticmaala inay ku qoraan erayada iyagoo akhrinaya oo dib u qoraya waxay ku arkeen shaashadda. Qoraalku had iyo jeer way adkeyd in la akhriyo, iyadoo la isku dayay in la joojiyo bots-ka inay dilaaciyaan.

Ugu dambayntii, heerkan CAPTCHA ma bixin ilaalin badan muddo dheer, iyo nidaamka jahawareerinta ah, waxay ka cadhaysiisay isticmaalayaasha waxayna lumisay taraafikada milkiilayaasha boggaga badan.

Markii aan u gudubnay xilligii mobilada iyo daciifinta dareenka dareenka, Google wuxuu rabay inuu abuuro xal ka wanaagsan sidaas darteed, reCAPTCHA v1 waa la tirtiray oo v2 ayaa dhashay.

reCAPTCHA v2 - Anigu ma ihi Robot Checkbox

reCAPTCHA v2 waxay ahayd talaabo aad u wayn oo dhanka saxda ah loo qaaday. Iyada oo la adeegsanayo reCAPTCHA v2, software-ka Google ayaa fiiro gaar ah u yeelan doona makiinadaada muhiimka ah iyo habka uu mouse-kaagu u dhaqaaqayo si loo go'aamiyo in aad tahay robot iyo in kale.

Is dhexgalka kasta oo ku jira mareegaha leh reCAPTCHA v2, software-ku wuxuu wax badan ka baran doonaa waxa dabeecadda bani'aadamku yahay iyo waxa aan ahayn, taasoo ka dhigaysa mid aad u sax ah inta uu baranayo. Haddii hab-dhaqankaagu yahay mid bini'aadminimo, waxaad ka heli doontaa adigoo gujinaya kaliya sanduuqa hubinta.

Haddii lagugu calaamadiyo inaad tahay mid shaki leh, waxaa lagu waydiin doonaa inaad gujiso sawirada ku habboon sawirka. Kani waa tijaabo siinaysa isticmaalaha ugu dambeeya 55 ilbiriqsi oo kaliya si uu u xaliyo. Botka, tani waxay u ekaan doontaa mid dhib badan, Google -na waxay u muuqataa inay u taagan tahay ka ilaalinta mareegaha bots. Si kastaba ha noqotee, raadinta Google waxay daaha ka qaadi doontaa dhammaan noocyada daraasadaha, imtixaannada, iyo softiweerka sheeganaya inay nidaamka ku jabiyeen bot.

Marka la soo koobo, reCAPTCHA v2 waxay joojin doontaa bots-ka, waxay hoos u dhigi doontaa bots-ka, laga yaabee ilaa heer aysan mudnayn in la isku dayo, laakiin waxaa laga yaabaa inaysan had iyo jeer joojin shaqsi ama urur dhiirigelin leh.

reCAPTCHA v3 – Qarsoon CAPTCHA

reCAPTCHA 3 way ka duwan tahay xulashooyinka aan soo sheegnay. Halkii laga isticmaali lahaa imtixaan si loo go'aamiyo in adeegsaduhu uu yahay bot iyo in kale, reCAPTCHA waxay la socon doontaa isdhexgalka isticmaalaha ee mareegaha si loo siiyo isticmaalaha dhibco.

Dhibcahaasi waxay isticmaali doonaan arrimo kala duwan, sida sida ay ugu wareegayaan goobta, ama boggaga ay marka hore booqdaan, oo ay dib ugu celiyaan xogta hore.

Milkiilaha mareegaha ayaa markaa dejin kara reCAPTCHA v3 si uu u xannibo ama u diido isticmaalka isticmaalaha iyadoo ku xidhan heerka dhibcaha. Taas beddelkeeda, waxaa loo dejin karaa si ficillada loo hakiyo ama loo xaddido waqti gaaban, boostada loo diro safafka dhexdhexaadinta, ama aqoonsiga labaad ayaa loo baahan yahay.

Mar labaad, waxaa jira daraasado la sameeyay si la isku dayo in la jebiyo reCAPTCHA v3^{(try to crack reCAPTCHA v3)} . Waqtigaan, inkastoo, cilmi-baarayaashu waxay raadinayaan inay abuuraan AI oo booqan kara bogga internetka oo ay ku sameeyaan ficillo halkaas sida bani'aadamnimada ee suurtogalka ah si ay ugu gudbaan imtixaannada CAPTCHA aan la arki karin .

Markaa CAPTCHA Dhab ahaantii ma shaqeysaa?^{(So Does CAPTCHA Actually Work?)}

Ilaa hadda, hal shay ayaa caddeeyey - cilmi-baaris ayaa muujisay in CAPTCHA , ama re CAPTCHA , ma joojinayso dhammaan hawlaha aan bini'aadamka ahayn. Si kastaba ha ahaatee, waxay si ba'an u xaddidaysaa taraafikada bot waxayna joojisaa inteeda badan jidkeeda. Markaa, macnahaas, waxaan dhihi karnaa CAPTCHA way shaqeysaa, xitaa haddii aysan lahayn heerka guusha 100%.

Waxaa laga yaabaa in AI uu sii caqli badnaan doono oo uu awood u yeelan doono inuu u dhaqmo sida bini'aadamka oo kale, laakiin kiiskaas, Google wuxuu hoos u dhigi doonaa CAPTCHA v4, ama horumariyeyaasha kale ee CAPTCHA ayaa sii deyn doona wax cusub.

Waa sida ciyaarta bisadda iyo jiirka oo kale. Ugu dambeyntiina, shabakadu aad ayey uga fiican tahay in la haysto CAPTCHA waxayna yareyn kartaa dhaqdhaqaaqa bot-ka kumanaanka ilaa xaddi yar.

HDG Explains: What Is CAPTCHA & How Does It Work?

When signing into a wеbsitе onlinе, or entering sensitive information, you may sometimeѕ be asked to click a tick box, match images together, or type in a rаndom series of numbers and letters.

This is known as a CAPTCHA. It’s designed to stop non-human behavior online. But what does that actually mean? And can a CAPTCHA with one step as simple as ticking a box really stop bots from performing actions online?

Let’s take a deeper look into what CAPTCHA is and how it is used to bring security throughout the internet.

What Is CAPTCHA?

CAPTCHA is a strange acronym for a pretty easy to understand sentence – it stands for Completely Automated Public Turing test to tell Computers and Humans Apart.

So, essentially CAPTCHA, as we know it online, is an automated test to determine whether a user is a human or a bot. A bot could be automated software designed to post spam comments online, brute force login pages with a series of passwords, or perhaps software that tries to automatically scrape information from other websites. By using a CAPTCHA, bots can be stopped from performing automated behavior like this.

A CAPTCHA could really be anything, so long as it can use some kind of test that can only be passed by thinking like a human. In the past, the most common type of CAPTCHA would be a series of jumbled letters and numbers that users would type to pass the test.

The letters were drawn with almost ineligible font, to make it very hard for any type of automated software to read it. It worked, but with AI getting more powerful, the security it offered was questionable as the years went on.

These days, the most common CAPTCHA you will see online is from Google, called reCAPTCHA. There are alternatives, but we can use Google’s as an explanation of how it all works.

The Types Of reCAPTCHA & Do They Work?

Google has gone through three major iterations of the reCAPTCHA software now. Let’s take a look at how each version differs from each other and how they work to stop bots.

reCAPTCHA v1 – Traditional Text Test

The original reCAPTCHA v1 may look nostalgic to you now, and that’s because it’s not used anymore, for good reason. This method would require users to type words by reading and rewriting what they saw on the screen. The text was always hard to read, in an attempt to stop bots from cracking it.

Ultimately, this level of CAPTCHA didn’t provide much protection for long, and with such a frustrating system, it annoyed users and lost many website owners traffic.

As we moved into the era of mobile and weakening attention spans, Google wanted to create a better solution and thus, reCAPTCHA v1 was scrapped and v2 was born.

reCAPTCHA v2 – I’m Not a Robot Checkbox

reCAPTCHA v2 was a huge step in the right direction. With reCAPTCHA v2, Google’s software will pay attention to your key presses and the way your mouse is moving to determine whether you are a robot or not.

With every interaction on a website with reCAPTCHA v2, the software will learn more about what human behavior is and isn’t, making it more accurate as it learns. If your behavior is humanlike, you’ll get through with just clicking the checkbox.

If you get flagged as suspicious, you’ll be asked to click matching pictures on a photo. This is a test that gives the end user just 55 seconds to solve. For a bot, this would seem tricky, and Google seem to stand by it for protecting websites against bots. However, a Google search will reveal all sorts of studies, tests, and software that claim they’ve broken the system with a bot.

In summary, reCAPTCHA v2 will stop bots, it will slow down bots, perhaps to the point where it’s not worth trying, but it may not always stop a motivated individual or organisation.

reCAPTCHA v3 – Hidden CAPTCHA

reCAPTCHA 3 is different to the aforementioned options. Instead of serving a test to determine whether a user is a bot or not, reCAPTCHA will monitor a user’s interaction with a website to give that user a score.

That score will use varying factors, such as how they move around the site, or what pages they visit first, and back that up with previous data.

A website owner can then set up reCAPTCHA v3 to either block or deny a user access depending on their score level. Alternatively, it can be set up so that actions are throttled or limited for a short time, posts are sent to moderation queues, or secondary authentication is required.

Once again, there are studies being done to try to crack reCAPTCHA v3. This time, though, researchers are looking to create an AI that can visit a webpage and perform actions there as humanlike as possible to pass the invisible CAPTCHA tests.

So Does CAPTCHA Actually Work?

So far, one thing has been clear – research has shown that CAPTCHA, or reCAPTCHA, does not stop all non-human activity. However, it does severely limit bot traffic and stop the majority of it in its tracks. So, in that sense, we can say that CAPTCHA works, even if it doesn’t have a 100% success rate.

Perhaps AI will get smarter and will be able to act more human like, but in that case, Google will drop reCAPTCHA v4, or other CAPTCHA developers will release something new.

It’s like an endless game of cat and mouse. Ultimately, a website does much better to have CAPTCHA and it can reduce bot activity from the thousands into almost minuscule amounts.

Eric Adams

About the author

Waxaan ahay khibrad Windows 10 iyo Windows 11/10 Maamule khibrad u leh Edge. Waxaan leeyahay aqoon iyo waayo-aragnimo badan oo aan ku bixiyo goobtan, taas oo ah sababta aan u aaminsanahay in xirfadahaygu ay u noqon doonaan hanti qiimo leh shirkaddaada. Sannadaha aan waayo-aragnimada u leeyahay labada Windows 10 iyo Edge waxay i siinayaan awood aan si degdeg ah u barto tignoolajiyada cusub, u xalliyo dhibaatooyinka si dhakhso ah, oo aan ula wareego marka ay timaaddo socodsiinta ganacsigaaga. Intaa waxaa dheer, waayo-aragnimadayda Windows 10 iyo Edge waxay iga dhigayaan aqoon badan oo ku saabsan dhammaan qaybaha nidaamka qalliinka, taas oo faa'iido u leh maareynta server-yada ama maareynta codsiyada software.

HDG wuxuu sharxayaa: Waa maxay CAPTCHA & Sidee ayay u shaqeysaa?

Waa maxay CAPTCHA?^{(What Is CAPTCHA?)}