> What would only take a few seconds for a single user would take hours for anyone seeking to establish a bot network spanning thousands of pseudo-users. The c

> What would only take a few seconds for a single user would take hours for anyone seeking to establish a bot network spanning thousands of pseudo-users. The claims on the mCaptcha site contradict this. They say it takes about 2 seconds worst case for a computer to do the work, which is hashing sha 256. Looking around, an unaccelerated celron is about 1/20th the speed of a single ryzen core, and gpus are much faster. Assuming the attacker has an 8 core ryzen with no gpu, they can hash 160 times faster than the person with an older machine. Assuming the 2 sec upper bound is correct, this means a sub $1000 desktop can create 80 accounts per second, or 4800 accounts per minute. If they are operating a botnet, then they presumably have access to more than one machine.