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6 votes

Security of Tor bridges and Captcha

Any captcha system can be broken by paying people. The captcha has been attacked in the past by a nationstate adversary. The captcha isn't critical to the security of Tor, it does present problems ...
cacahuatl's user avatar
  • 10.9k
4 votes

Are Google’s captchas often downright impossible to solve for Tor users because reCAPTCHA is *lying* to them?

Yes. This for me happens only with Tor. I have tested multiple VPN and browser configs and the only combination that got the "please try again" error was Tor. Furthermore sometimes even when the ...
Skynet Apocalypse's user avatar
4 votes

How to solve Captcha problem in TOR?

Many identified exit nodes have been blacklisted on some websites, and your current exit node is on that blacklist. You could try changing your exit node, but honestly in the end you're just going to ...
Alpha's user avatar
  • 43
3 votes

How to solve Captcha problem in TOR?

Well, a "captcha case" is quite common one using Tor. You need to change the exit node to try again - the problem is that there're not-so-much-as-needed exits and you can hit a hevily-used exit node, ...
Alexey Vesnin's user avatar
  • 6,023
2 votes

Text verification captcha non visible error while registering facebook via Tor

Another workaround is to modify the URL so that it begins with https://www.facebookcorewwwi.onion/ - that's Facebook's official .onion address, and the CAPTCHA works there.
fdshfhoih's user avatar
2 votes

Text verification captcha non visible error while registering facebook via Tor

I can reproduce this, I think it's actually a bug in facebook's captcha mechanism. From what I can see, it's requesting /tfbimage.php?captcha_challenge_code=foo&captcha_challenge_auth=bar and ...
cacahuatl's user avatar
  • 10.9k
2 votes

Is it possible to use Google apps with Tor?

If the captcha is via CloudFlare you're probably out of luck. I've got through 30+ captchas and then gave up. It's a known issue that CloudFlare seems very reluctant to remedy. It's not a Google issue ...
T.J.'s user avatar
  • 183
2 votes

How to fix CAPTCHA error on GitHub signup over Tor?

Use recently launched Tor Exit Node The workaround is to hand pick a Tor Exit Node that is very new on the Internet (launched hours ago). We only need this for the signup step. It is critical to ...
Cypherpunk Institute's user avatar
1 vote
Accepted

I am really puzzled why I have less CAPTCHA with Tor browser than with normal Firefox via VPN

One possibility of running into a lot of CAPTCHAs might be because this VPN is used by many and generating a lot of traffic, hence the websites might be confusing all of it as automated traffic. That ...
championquizzer's user avatar
1 vote
Accepted

Can captchas expose hidden services? And how?

It's not clear if that story is true or not: https://krebsonsecurity.com/2014/09/dread-pirate-sunk-by-leaky-captcha/ https://krebsonsecurity.com/2014/10/silk-road-lawyers-poke-holes-in-fbis-story/ But ...
Steve's user avatar
  • 3,132
1 vote
Accepted

YouTube now forcing Tor users to solve captcha?

You can switch to an Invidious instance. Invidious is an alternative, open source front-end to YouTube.
Roffen's user avatar
  • 56
1 vote

reCAPTCHA doesn't work with Tor Browser

I had the same issue. I lowered the security slider to the lowest level, did the reCaptcha, then slid it back to where I had it before. It works every time for me, give it a try.
Mr.Bobcat's user avatar
1 vote

Cloudflare Hates TBB v7? (Not Duplicate)

What was the previous TBB version doing that I wasn't seeing so many Cloudflare captchas? According to these two comments from arma and gk, the fix was on Cloudflare's side, and they haven't ...
Anonymous's user avatar
  • 138
1 vote

So many unfillable captchas?

it seems that some sites like Cloudfare and Google are mass-accessed through your exit point. Use "SIGNAL NEWNYM" command to forcibly change your exit and try again.
Alexey Vesnin's user avatar
  • 6,023

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