Online businesses are increasingly employing denial of service attacks against competitors, as criminals monetise Anonymous' preferred hacking technique.
David Gilbert
2012-09-20
http://www.ibtimes.co.uk/articles/386351/20120920/business-attacking-competitors-ddos-anonymous.htm
...
One of the more prominent services is Gwapo, which promises to take down a personal website for an hour, for just $5. For larger websites the cost moves up to between $10 and $50 per hour.
To avoid detection, the service only accepts payment though anonymous services such as Liberty Reserve and Bitcoin.
...