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Applying for a cybersecurity position with the federal government? Get ready to wade through a lot of paperwork. The government wants to be sure you're a safe bet.
Government employees and federal contractors who need access to classified data must hold security clearance. Most people have heard of "top secret" clearance, but that is just one of several classifications of restricted information.
Candidates must prove good character and sound judgment to gain clearance at any level. Government agencies can deny authorization for many reasons. According to the Congressional Research Service , about 4.3 million Americans hold security clearance.
Learn more about what security clearance is, who needs it, and what you can expect from the process.
What Is a Security Clearance?
U.S. government agencies provide security clearances. These authorizations give access to restricted areas or information. An agency must request appropriate clearance when hiring a new candidate.
Government investigators then examine candidates to determine their eligibility. Investigators may review fingerprints and criminal records. They also interview candidates' friends, family, and other connections.
Once an investigation is complete, an adjudicator compares the results against 13 guidelines supplied by the Office of the Director of National Intelligence (ODNI). These guidelines look at factors like personal conduct, national allegiance, and information technology use. The adjudicator then decides if a candidate is eligible for clearance.
History of Security Clearances
The Civil Service Act of 1883 established a merit-based system for hiring and overseeing government employees. This system required civil servants to show good character and reputation.
In 1939, the Hatch Act expanded this concept. The act eliminated government employment for anyone who joined a political movement advocating the overthrow of the U.S. government. During World War II, an executive order mandated fingerprinting for government employees.
In 1954, the Department of Energy (DOE) created a structure to protect restricted data. Eighteen years later, the Department of Defense (DOD) launched the Defense Investigation Service to put all background checks under a single unit.
Since the 1970s, the federal government has launched many more initiatives to streamline and sustain security clearances.
Who Issues Security Clearances?
Government agencies that handle classified information all issue security clearances. No single agency serves as a point of contact for the entire federal government. However, the DOD conducts most background investigations.
Under reciprocity guidelines, federal agencies normally accept each other's investigations and adjudications.
Agencies that commonly require security clearances include the DOD, the Department of Homeland Security, the DOE, the Department of State, and the Federal Bureau of Investigation (FBI).
The Department of Defense provides most background checks and makes fitness decisions about federal personnel and contractors.
The Department of Homeland Security generally provides secret clearance to state, local, private sector, territorial, and tribal entities. Governors receive top secret clearance.
The Department of Energy provides clearance for employees working with classified information or with special nuclear material.
The Department of State maintains the Diplomatic Security Service, which conducts background investigations for departmental employees.
The Federal Bureau of Investigation provides security clearance for its own employees as well as for state and local law officials who need access to classified information.
Before 2019, the Office of Personnel Management performed most background checks. In 2019, Executive Order 13869 transferred most of that power to the DOD. The DOD then created the Defense Counterintelligence and Security Agency. This agency now performs 95% of background checks for more than 100 federal agencies.
DOD investigators review a candidate's background. They look at factors like education, employment history, and criminal record. Investigators may also examine documents and interview friends, family, and neighbors.
An adjudicator then reviews the data investigators gather against ODNI's 13 guidelines. These guidelines cover topics like foreign preference, sexual behavior, and psychological conditions. The adjudicator then makes a decision about the candidate's clearance level.
Types of Security Clearances
The U.S. government provides three levels of security clearance: confidential, secret, and top secret.
Confidential clearance gives the holder access to information that could damage national security if leaked. A program manager or executive assistant might need confidential clearance. This clearance level requires renewal every 15 years.
Secret clearance provides access to data that, if released without authorization, could cause serious damage to national security. A counterintelligence analyst, cybersecurity analyst , or technical writer might need this clearance level. Holders must renew secret clearance every 10 years.
Top Secret Clearance / Sensitive Compartmented Information
Unauthorized release of some information could cause grave national security damage. Top secret clearance allows holders to access this information. A systems administrator or nuclear policy analyst might need top secret clearance. This clearance level requires reinvestigation every five years.
Department of Energy Authorizations
The DOE issues “L” and “Q” access authorizations. L authorization corresponds to confidential and secret clearance levels. Q authorization compares to top secret clearance.
Executive Order 13526 identified classification categories for information. These categories help determine which documents might be confidential, secret, or top secret.
Jobs Requiring a Security Clearance
Who needs security clearance? Anyone who works in a job that requires access to classified information or restricted areas. These jobs usually fall into three categories: federal and military jobs, government contractor positions, and intelligence agency roles.
Specific jobs that may require security clearance include:
Cryptographer : Cryptographers use protocols to encrypt and decipher data. These senior-level cybersecurity experts may work in national security or for government contractors. They often perform risk assessments and cryptographic controls. Cryptographers usually need a bachelor's degree or higher.
Security Analyst : Security analysts review and analyze network systems and organizational policies to help prevent data breaches. These professionals can work in international relations or security-oriented jobs for contractors or agencies. They need a bachelor's degree and industry experience.
Counterintelligence Analyst: A counterintelligence analyst may conduct criminal investigations, counterterrorism support, or counterespionage work. These professionals generally work for the FBI or DOD. This job may require experience in investigations and counterintelligence policy research.
Technical Writer: Technical writers develop content on emerging technologies. They may work for the DOD and other national security agencies. These experts review and analyze files to present complex information in a clear and actionable way. Technical writers often need a bachelor's degree and about five years of experience.
Chief Information Security Officer : In this senior executive role, professionals oversee an organization's technology security. They lead teams of project managers, software developers, and cybersecurity engineers . This role usually requires a bachelor's or master's degree in a related field and 15 or more years of experience.
How to Get a Security Clearance
The federal government provides a step-by-step process to gaining security clearance:
A candidate receives a conditional job offer.
The candidate submits a questionnaire to the hiring office along with supporting documentation. Separate questionnaires exist for non-sensitive, national security, and public trust positions.
An investigator reviews the questionnaire and documentation.
The investigator conducts fingerprint and background checks. They verify key events in the applicant's personal timeline.
An adjudicator determines the candidate's eligibility for national security clearance.
The adjudicator contacts the hiring agency with the investigation results.
Security Clearance Requirements
Security clearance requirements vary by federal agency. However, some general guidelines govern who receives clearance and who does not.
Agencies consider factors such as allegiance to the U.S., foreign influence or preference, and financial considerations. They look at sexual behavior and drug or alcohol use. They also pay attention to psychological conditions, criminal conduct, outside activities, and information technology use.
Security concerns might include supporting sedition or applying for citizenship in another country. Investigators also look out for a pattern of high-risk sexual behavior or a history of not meeting financial obligations.
A single instance of concern in any area will not necessarily disqualify an applicant. The reviewers also consider the applicant's response to the concern. Was it truthful, complete, and voluntary? Has the applicant shown positive behavior changes since the concerning incident?
The U.S. government does not discriminate on the basis of color, sex, race, religion, disability, national origin, or sexual orientation.
Threats to Obtaining a Security Clearance
The National Counterintelligence and Security Center (NCSC) publishes a list of guidelines for evaluating candidates for clearance. These guidelines cover both public and private behavior.
Anything that raises concerns about an applicant's character or background may result in their security clearance application getting denied. For example, associating with people or organizations who have attempted sedition against the U.S. will flag an adjudicator's concerns.
No single point of concern must absolutely deny a candidate, though. The adjudicator looks at the seriousness, frequency, and recency of the misconduct. They examine any extenuating circumstances and analyze the likelihood of recurrence. If a candidate has associated with a terrorist organization because they were engaging in humanitarian action, for example, the concern might be lifted.
To address concerns, candidates should truthfully, completely, and voluntarily report all relevant information. They should also demonstrate positive behavior changes.
Maintaining Your Security Clearance
The rules for maintaining security clearance vary by agency and clearance level. In general, however, the Department of State 's guidelines provide a framework for security maintenance.
People must undergo reinvestigation every five years to maintain top secret security clearance. In a reinvestigation, the worker submits an updated security package, and the agency conducts a new background check.
The reinvestigation reviews the candidate's life since the last background check. The investigator may ask candidates to address any new concerns.
Agencies must also provide continuous evaluation for people covered by security clearance. Each agency decides for itself how to conduct that evaluation. Once a covered individual no longer needs security clearance — such as when they transfer from public to private sector work — the agency ends their clearance.
For more information about security clearance, you can review the following documents:
Published by the U.S. State Department's Bureau of Diplomatic Security, this webpage provides an overview of security clearance. Readers can learn about security clearance requirements, the clearance process, interim clearance, and maintaining clearance. The page also includes frequently asked questions and contact information.
Operating within the DOD, the Defense Counterintelligence and Security Agency vets contractors and companies that do business with the federal government. This agency also helps protect contractors' technology from cybersecurity attacks .
The FBI publishes this document to help state and local law enforcement officers apply for security clearance. This clearance allows officers access to classified information. The document provides information on how to apply and answers questions such as "what is security clearance?"
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Frequently Asked Questions About Security Clearances
What does it mean to have security clearance?
Security clearance provides access to restricted areas or classified information. Candidates usually undergo an investigation through the DOD, which conducts background investigations for most federal agencies.
What is the highest security clearance you can get?
The federal government provides three levels of clearance: confidential, secret, and top secret. Top secret clearance is the highest security clearance level anyone can get. A candidate's responsibilities determine the level of clearance granted.
State and local law enforcement officers, for example, usually need confidential or secret clearance. Top secret clearance goes to people who need access to national security information.
Is it hard to get security clearance?
Yes. All candidates undergo a thorough review, and approval for any clearance level is not guaranteed.
At most federal agencies, hiring officials decide if an applicant needs security clearance, and if so, at what level. For the FBI, state and local officials who need clearance may apply.
What disqualifies you from obtaining security clearance?
Candidates may not receive clearance if the agency expresses concerns about drug or alcohol use, criminal conduct, psychological conditions, sexual behavior, or allegiance to the United States.
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