Senate Minority Leader Chuck Schumer (D-N.Y.) is urging the Department of Homeland Security (DHS) to enhance support for state and local governments in defending against AI-enabled cybersecurity threats. Schumer expressed his concerns in a letter to Homeland Security Secretary Markwayne Mullin, highlighting the absence of a coordinated plan to tackle vulnerabilities exposed by advanced AI models, such as Anthropic’s recently released Mythos, which can identify long-standing security flaws. He emphasized the urgent need for DHS to assist governments in assessing risks to critical infrastructure and addressing leadership gaps, as the Cybersecurity and Infrastructure Security Agency (CISA) has been without a Senate-confirmed director since the second Trump administration.

Chuck Schumer: Chuck Schumer serves as Senate Minority Leader from New York, leading Democratic strategy amid efforts to regain Senate control in the 2026 elections. He recently defended his endorsed primary candidates and spoke on the Senate floor about voting rights protections. In this news, Schumer wrote to DHS Secretary Markwayne Mullin urging a coordinated plan to protect state and local governments from AI-enabled cyber threats.
Markwayne Mullin: Markwayne Mullin is the Secretary of Homeland Security, confirmed by the Senate in March 2026 during the second Trump administration. He recently communicated with DHS employees following a government shutdown. Schumer’s letter to Mullin highlights concerns over delayed cybersecurity support for local governments amid advancing AI hacking tools.
Department of Homeland Security: The Department of Homeland Security oversees national cybersecurity resilience and critical infrastructure protection across government levels. It recently shifted from a compliance-heavy approach to proactively counter AI-driven cyber threats from adversaries. Schumer pressed DHS to assist state and local entities with real-time vulnerability sharing and risk assessments before major disruptions occur.
Cybersecurity and Infrastructure Security Agency: CISA, a component of DHS, leads in sharing cyber threat intelligence and conducting infrastructure risk assessments. The agency has faced leadership challenges with recent nominees withdrawing and no Senate-confirmed director since the start of the second Trump administration. Schumer emphasized assigning qualified leadership to CISA to prepare for frontier AI-enabled hacking.

`json
{
“DHS Cyber Shift”: “DHS is focusing on strengthening collaboration with state and local governments to counter AI-enabled cybersecurity threats.”,
“CISA Leadership Gap”: “CISA has not had a Senate-confirmed director since the beginning of the second Trump administration.”,
“AI Model Capabilities”: “Anthropic’s Mythos model is designed to identify long-known security vulnerabilities, leading to a limited release strategy to prevent potential misuse.”
}
`