Offensive Security (OffSec)
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The gold standard hands-on penetration testing certification. Candidates must compromise multiple machines in a 24-hour proctored exam on a live network — entirely performance-based, no multiple choice. OSCP+ badge valid 3 years.
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Foundational data visualization certification covering Tableau Desktop — connecting to data, building views, dashboards, formatting, and basic calculations. Entry point to the Tableau certification ladder. Now part of Salesforce since 2019.