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CAPTCHA is not working against all robots anymore but...

Also many reCAPTCHAs are being bypassed, it still work against robots.

The main reason for the bypass is the fact that some people get paid to resolve those reCAPTCHAs. In other words, some people are offered a job to do just that! They go to a computer, resolve many reCAPTCHAs and get paid something like 2 cents per successful resolutions. The result is that websites with reCAPTCHAs still receive a lot of spam!

Yet, when a stupid robot (opposed to a person) access the site, the robot tries again and again from the same computer. This means we'll get many failures from the same IP address. We count these failed attempts and once too many failures are detected, we completely block the IP address with our firewall. The block is permanent, at least until we reboot the server (which happens once in a while as the kernel gets updated.)

This has proven quite useful at blocking spam and saving resources on our server. To give you an idea, on our main company website (https://www.m2osw.com/) we got something like 16 failures in about 2 hours from the time we installed the new capability. This means 8 failures/hour, or about 200 a day. You can imagine that if we get an attack, it could represent 1,000 or more hits (the largest I've see against our server was over 6,800). With this mechanism, and since an attack is generally from the same computer, it gets blocked after just a few failures and all the following acceses are blocked by the firewall which means they don't even reach the web server and that saves a lot of resources (processing time, disk I/O, bandwidth...)

Our next version of Snap! will include an even more advanced version of this: it will work for all the existing websites and it will be capable of just turning off the interactivity for the user. This means the user will still be able to access the site, but commenting and contact forms will all be turned off.

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Brand new update of SEO/SMM software "XRumer 16.0 + XEvil"

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