Which organization is known for monitoring the Internet for tactics and symbols related to high tech hate culture?

The organization recognized for monitoring the Internet for tactics and symbols associated with high-tech hate culture is the Simon Wiesenthal Center. This organization has a strong focus on combating anti-Semitism and hate through various forms of outreach, including tracking and documenting online hate speech, hate groups, and extremist symbols. The Simon Wiesenthal Center utilizes technology and data analysis to identify patterns related to online hate culture, making it a leader in this area.

While other organizations also fight against hate and prejudice, their primary focuses differ. For instance, the Southern Poverty Law Center is primarily known for its work on legal issues related to hate groups and educational outreach regarding civil rights. The Anti-Defamation League has a long history of fighting anti-Semitism and discrimination, and while it addresses online hate, it does not specialize solely in high-tech hate culture in the same manner as the Simon Wiesenthal Center. The Human Rights Campaign focuses on LGBTQ+ rights and may tackle hate targeted at that community, but it isn't specifically known for monitoring high-tech hate culture broadly.

Thus, the Simon Wiesenthal Center stands out for its dedicated efforts in tracking and addressing the nuances of hate in the digital age, making it the correct answer.