I'll preface this by saying I haven't yet upgraded from SMF 2.1 RC4 but I don't THINK that's relevant to this issue (please correct me if I'm wrong)

For security on the forum I allow immediate registration but I do utilise the questions  - need to answer 3 from a larger group.

Spammers had been registering so I changed ALL the questions (and answers) but there are still at least 3  week still managing to register and post.

Something is awry.  Any suggestions please?

forum is ytyak.com

Your version of SMF is not the issue. I went to the sign up portion of your site and there are only 2 questions I can see and I think they are way to easy. The questions I have get changed once every few weeks cause people make it through and they are tougher than yours.

Yes, you cannot make your questions too easy. You can also try using a recaptcha and/or use Spam Blocker:

https://web-develop.ca/index.php?topic=3.0.

HCaptcha seems to work well as well (alternative to reCaptcha - there's a mod for it)

I use questions (3 of 30), captcha and the stop spammer mod oh and also cleantalk just cause and I have NO spammers! They try but can't get through!  

QuoteYes, you cannot make your questions too easy.

They need to be easy for a person but hard for a computer, somehow.
What do you mean by too easy in this context?
They need to be easy for a person but hard for a computer, somehow.

I'll have another look at the questions though.

Quote from: Skhilled on Jun 09, 2022, 08:45 AMYou can also try using a recaptcha and/or use Spam Blocker:
https://web-develop.ca/index.php?topic=3.0.

That shows as from 2013 and compatible with 2.0.x not 2.1

Quote from: Shades on Jun 10, 2022, 11:26 AMI use questions (3 of 30), captcha and the stop spammer mod oh and also cleantalk just cause and I have NO spammers! They try but can't get through!  

So Stop Spammer works with latest SMF properly?
Never heard of cleantalk...
 

I just checked again and Stop Spammer is not available for 2.1 at this time.

Too easy meaning, "What is 1 + 1?"...questions like that or "What color is a red rose"? Hackers/spammers use bots loaded with Q's and A's like those to help them easily bypass those types of questions.

You should also change the questions from time to time.

OK Ive upgraded the questions an added recaptcha - hopefully that'll work
+

Quote from: Skhilled on Jun 11, 2022, 06:21 AMI just checked again and Stop Spammer is not available for 2.1 at this time.

Quote from: LandyVlad on Jun 11, 2022, 06:06 AMSo Stop Spammer works with latest SMF properly?

 Sorry I meant Stop Forum Spam!

Quote from: LandyVlad on Jun 11, 2022, 06:06 AMNever heard of cleantalk...

Here is CleanTalk Mod and their website.

I didn't know it was still available. I thought it had died off some time ago.

Quote from: Skhilled on Jun 13, 2022, 08:20 AMI didn't know it was still available. I thought it had died off some time ago.

It doesn't have all the features the old one had (like the ability to check members individually in admin) but it works as it is!

Yes, I was reading about it yesterday... It would be nice if it had all of the old features.

This topic reminded me that I have not been to the SMF mod site in quite awhile and found this:

Spam protection, AntiSpam, FireWall by CleanTalk (no Captcha/reCaptcha)

https://custom.simplemachines.org/index.php?mod=3851

Yes thats the one described above.

I installed that cleantalk mod and requested a key via the mod and it activated without asking for the $8/year (which I'd be happy to pay).  I'll consider it a 'trial'