My run-in with unauthorised Litecoin mining on AWS
CPU mining of scrypt-based cryptocurrency is highly inefficient. Let's do some math.<p>A cc2.8xlarge is reported to mine at 85 kh/s, so 20 of them would give you 1700 kh/s. That's roughly equivalent to a couple of high-end AMD GPUs (say a couple of overclocked 290x). This hashing power gives you a little over 0.5 LTC per day. It mined for two days, so it gained a little over 1 LTC. Let's call it $40.<p>That's right, the idiot behind this cost the OP $3000+ for $40 profit. A smarter criminal would have spawn GPU instances on EC2.