This was a young researcher who's access to the cluster was never revoked when they left a few years ago. Original e-mail Harvard sent last week: ------ Dear

This was a young researcher who's access to the cluster was never revoked when they left a few years ago. Original e-mail Harvard sent last week: ------ Dear all, I really hate having to send notes like this to our community - especially one as smart, gifted and talented as you all are, but anyway here goes... Yesterday we were alerted to an unfortunate situation by one of our community members using the cluster who spotted an anomaly with a set of compute nodes. Long story short, a "dogecoin" (bitcoin derivative) mining operation had been set up on the cluster consuming significant resources in order to participate in a mining contest. I do want to also quickly state that we do not inspect, examine or look at algorithms and codes that are executing on the cluster, we respect your science and assume we are all good citizens. However, in the course of business, or as happened yesterday, if we are alerted to unexpected behavior we always investigate the cause of any issue. So, to put this simply: Harvard resources can not be used for any personal or private gain or any non research related activity. Accordingly, any participation in "Klondike" style digital mining operations or contests for profit requiring Harvard owned assets to examine digital currency key strength and length are strictly prohibited for fairly obvious reasons. In fact, any activities using our shared resources for any non scientific purpose that results or does not actually result in personal gain are also clearly and explicitly denied. As a result, and as guidance and as warning to you all, I do need to say that the individual involved in this particular operation no longer has access to any and all research computing facilities on a fully permanent basis. Don't let this happen to you.