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    • Marko Hakamaa

    Defense news and career advice written by Marko Hakamaa

    Top Reasons Security Clearances Were Denied and Revoked in 2024

    Top Causes of Clearance Denial and Revocation in 2023

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    Security Clearance

    Top Causes of Clearance Denial and Revocation in 2022

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    Security Clearance

    Top Reasons for Security Clearance Denial in 2021

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    Security Clearance

    Contractor Lies About Hours and Uses a Security Violation as the Excuse

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    Security Clearance

    Top Reasons for Security Clearance Denial in 2020

    Security Clearance

    How Much Does a Security Clearance Cost – FY 2021 Costs Show Modest Changes

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    Security Clearance

    Keeping Background Investigations Moving Forward Despite Coronavirus

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    Security Clearance

    Top Reasons for Security Clearance Denial in 2019

    Security Clearance

    Denied Clearance with One Agency, Just Try Another?

    Author’s Page

    Marko Hakamaa
    Marko Hakamaa served in various military police positions with the United States Army worldwide for 22 years before retiring in 2006 as a Master Sergeant. Afterwards, he transitioned into the civilian workforce as a contractor background investigator for the Office of Personnel Management (OPM) before entering civil service as a Security Specialist in 2009.

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