From a Deep Green Resistance press release:
Computer hackers known as Anonymous leaked information obtained by hacking into private intelligence firm Stratfor’s computer network. The documents – what Anonymous is calling a teaser – suggest that from at least October to November 2011 Stratfor worked with Texas law enforcement to infiltrate the Occupy movement and spy on the Deep Green Resistance movement. The document contains emails in which Stratfor employees discuss Occupy Austin and Deep Green Resistance. Stratfor “Watch Officer” Marc Lanthemann writes about receiving information on Occupy Austin and DGR from a “Texas DPS agent.” The Texas Department of Public Safety is a statewide law enforcement agency that includes an Intelligence and Counterterrorism Division.
You can find documents and more information on the DGR website.