/blog/Recent content in Blog onHugo -- gohugo.ioen-US/blog/pow-performance/Wed, 01 Sep 2021 00:00:00 +0000/blog/pow-performance/mCaptcha uses a proof-of-work(PoW) mechanism to rate limit users or potential bots. In order for this to be effective, the PoW should be configured properly. The difficulty requirement can’t be too high, as it could cause accessibility issues on the client-side while at the same time, it shouldn’t be too low, as it wouldn’t offer proper protection against bots. Malicious bots(the ones that wreak havoc), run native code which is capable of running in a multi-threaded context./blog/say-hello-to-mcaptcha/Wed, 26 May 2021 00:00:00 +0000/blog/say-hello-to-mcaptcha/At mCaptcha, we believe in digital freedom and privacy and so we built an proof-of-work based CAPTCHA system that doesn’t track. Seriously, no tracking. But that isn’t the killer feature, our system doesn’t require the user to pick cars or ID sidewalks — our system does it’s thing(usually at the click of a button) and gets out of the way. How does it work? mCaptcha uses SHA256 based proof-of-work(PoW) to rate limit users.