Virtual currency such as Litecoin and Bitcoin allow for "mining" of coins. Most people mine through mining pools. A very basic understanding of the way this works is that the next person to brute force the next hash gets paid virtual currency, which is worth real money. The more people mining, the less of a chance you will find the next coin. By pooling resources together, people stand a better chance of making money.
This week multiple virtual currency pool sites have been added to incorrect categories on OpenDNS, in effect blocking the people mining in these pools who use OpenDNS. This results in less money being made by the people in these pools, and more money being made by the people in the other pools.
Basically, OpenDNS is being misused to DOS virtual currency mining pools, which costs victims money. This includes me and my friends. Three of the pools I am a member of have have been in improper categories this week. bitcoinplus.com is an example of one of these sites. FWIW, I am a paying member of OpenDNS and I control the OpenDNS filtering on my network.
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