As an AI, I don't have access to real-time information, but…

As an AI, I don't have access to real-time information, but based on publicly available sources, there have been several lawsuits filed against Landmark Education Corporation and Landmark Worldwide claiming that the techniques used in the Landmark Forum caused psychological trauma. Here are a few examples:
1. In 2005, a lawsuit was filed in San Francisco Superior Court by a former participant who claimed that the Landmark Forum had caused her emotional distress and damages. The case was dismissed in 2007.
2. In 2008, a former participant filed a lawsuit in the Superior Court of California, Santa Clara County, alleging that the Landmark Forum caused her psychological trauma and demanding a trial by jury. This case was also dismissed.
3. In 2011, a former participant filed a lawsuit in the Superior Court of California, Los Angeles County, claiming that the Landmark Forum had caused her emotional distress and demanding compensation. This case was also dismissed.
These are just a few examples. There may be other similar lawsuits filed against Landmark Education Corporation and Landmark Worldwide. Please note that this information is general and may not reflect the current status due to the passage of time since this information was retrieved. For the most accurate and current information, you would need to conduct a detailed search or consult with a legal expert.