The Bush Administration in January 2008, initiated the Comprehensive National Cybersecurity Initiative (CNCI). It introduced a differentiated approach, such as: identifying existing and emerging cybersecurity threats, finding and plugging existing cyber vulnerabilities, and apprehending actors that trying to gain access to secure federal information systems. President Obama issued a declaration that the "cyber threat is one of the most serious economic and national security challenges we face as a nation" and that "America's economic prosperity in the 21st century will depend on cybersecurity."