NEW: A group of hacktivists calling themselves "Department of Peace" claims to have hacked an office wihin the Department of Homeland Security.
The hacktivists leaked data on more than 6,000 contracts between DHS and ICE and private companies to the transparency website Distributed Denial of Secrets.
"The DHS is killing us and people deserve to know which companies support them and what they’re working on,” the hackers wrote in a manifesto.
