David Bombal #519: Build Your First OSINT Bookmarklet in 5 Minutes
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Nov 8, 2025 Micah Hoffman and Griffin G are OSINT experts and co-founders of MyOSINT Training, specializing in investigative tools. They dive into how to extract hidden data from popular platforms using simple JavaScript bookmarklets. The duo discusses practical applications in law enforcement, helps investigators craft tools with AI, and explains the importance of operational security when utilizing these techniques. They're passionate about empowering others to build their own OSINT resources, making sophisticated investigations accessible to everyone.
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Page Source Often Holds Untapped Clues
- Pages often include unrendered source data (emails, comments, IDs) useful for investigations.
- Bookmarklets act as a practical window into that beneath-the-surface data layer.
TikTok Username Change Led To A Lead
- Micah described a TikTok case where a username change date was the only sign of recent activity.
- That small lead allowed law enforcement to issue legal process and locate the missing person.
Install Bookmarklets Fast And Manage Them
- Install bookmarklets by dragging them to your browser bar or add them as bookmarks to use immediately.
- Use Tampermonkey to centrally manage and keep bookmarklets updated across sites.