CAPTCHA alternative

[mrrossmullen]

www.kasada.io have a product which uses in browser checking without any user interruption. How it was explained was a little like bitcoin mining in the browser, with the algorithm increasing in complexity for failed attempts and causing the attackers costs to increase. The request a demo page uses the technology to protect fraudulent signups.

It doesn't flag screen reader behavior as suspicious, but it does require the user visit from the browser and it isn't free.