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  2. Transportation Security Administration - Wikipedia

    en.wikipedia.org/wiki/Transportation_Security...

    TSA.gov. The Transportation Security Administration (TSA) is an agency of the United States Department of Homeland Security (DHS) that has authority over the security of transportation systems within, and connecting to, the United States. It was created as a response to the September 11 attacks to improve airport security procedures and ...

  3. United States Department of Homeland Security - Wikipedia

    en.wikipedia.org/wiki/United_States_Department...

    The United States Department of Homeland Security (DHS) is the U.S. federal executive department responsible for public security, roughly comparable to the interior or home ministries of other countries. Its stated missions involve anti-terrorism, border security, immigration and customs, cyber security, and disaster prevention and management.

  4. Federal Air Marshal Service - Wikipedia

    en.wikipedia.org/wiki/Federal_Air_Marshal_Service

    History. In 1961, Gen. Benjamin O. Davis Jr., presented the idea of armed security forces on commercial flights. President John F. Kennedy ordered federal law enforcement officers to be deployed to act as security officers on certain high-risk flights. [8] The Federal Air Marshal Service began on March 2, 1962, as the Federal Aviation ...

  5. Sensitive security information - Wikipedia

    en.wikipedia.org/wiki/Sensitive_Security_Information

    The cover sheet used for Sensitive Security Information.. Sensitive security information (SSI) is a category of United States sensitive but unclassified information obtained or developed in the conduct of security activities, the public disclosure of which would constitute an unwarranted invasion of privacy, reveal trade secrets or privileged or confidential information, or be detrimental to ...

  6. List of U.S. security clearance terms - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._security...

    T3 or T3R - Tier 3 or Tier 3 Reinvestigation, now replace all NACLC. T5 and T5R - Tier 5 or Tier 5 Reinvestigation, now replace SSBI and SBPR respectively. Yankee White – An investigation required for personnel working with the President and Vice President of the United States. Obtaining such clearance requires, in part, an SSBI.

  7. Cybersecurity and Infrastructure Security Agency - Wikipedia

    en.wikipedia.org/wiki/Cybersecurity_and...

    The Cybersecurity and Infrastructure Security Agency (CISA) is a component of the United States Department of Homeland Security (DHS) responsible for cybersecurity and infrastructure protection across all levels of government, coordinating cybersecurity programs with U.S. states, and improving the government's cybersecurity protections against private and nation-state hackers.

  8. U.S. Immigration and Customs Enforcement - Wikipedia

    en.wikipedia.org/wiki/U.S._Immigration_and...

    Organization. U.S. Immigration and Customs Enforcement is responsible for identifying and eliminating border, economic, transportation, and infrastructure security vulnerabilities. There is an estimate of about 20,000 ICE employees in approximately 400 offices within the United States and 53 countries.

  9. Office of Personnel Management data breach - Wikipedia

    en.wikipedia.org/wiki/Office_of_Personnel...

    The Office of Personnel Management data breach was a 2015 data breach targeting Standard Form 86 (SF-86) U.S. government security clearance records retained by the United States Office of Personnel Management (OPM). One of the largest breaches of government data in U.S. history, the attack was carried out by an advanced persistent threat based ...