The Department of Government Efficiency (DOGE), led by Elon Musk, is encountering escalating legal challenges concerning its recent activities within the federal government. Key developments include:

Unauthorized Access Allegations: DOGE has been accused of improperly accessing sensitive systems within the U.S. Treasury Department, including payment infrastructures that handle disbursements like Social Security and federal salaries. This has led to significant legal actions aimed at restricting DOGE's access to these systems. 
WSJ.COM

Legal Actions by States: A coalition of 19 states, primarily led by Democratic attorneys general, has filed a lawsuit to prevent DOGE from accessing the Treasury's payment systems. The suit argues that DOGE's involvement could disrupt essential funding for health, education, and climate programs, and poses substantial cybersecurity risks. 
REUTERS.COM

Judicial Interventions: A federal judge has issued a temporary injunction barring DOGE from accessing sensitive Treasury materials, citing concerns over the potential improper disclosure of personal data. The order mandates that any unauthorized individuals who have already accessed such information must destroy it immediately. 
APNEWS.COM

Union Lawsuits: Federal employee unions have expanded their legal efforts against DOGE, seeking to protect multiple agencies from what they describe as unauthorized access and potential overreach. The unions argue that DOGE's actions could violate federal privacy laws and compromise sensitive personal and medical information. 
POLITICO.COM