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Showing posts from September, 2026

How to Import a Postman Collection (and Where to Set Your Environment Variables)

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Postman is heavily used in backend development, but if you've only ever built requests by hand, two features make a huge difference once you find them: importing a shared collection so you're not rebuilding requests from scratch, and variables, which let you swap out values (URLs, IDs, tokens) without hardcoding them into every request. This post covers both. If you want to see them in action end-to-end — including chaining data between requests with the Collection Runner — I've got a video walkthrough linked at the bottom. Importing a Collection: You don't have to build a collection from scratch if someone's already shared one — you can import it directly. Postman Desktop Application 1. In Postman, click Import (top left, or File → Import). 2. A popup window will appear where you can paste in a URL, paste raw text (like a cURL command), or select a file. For example, paste the raw GitHub URL of a .json collection — like the   URL Collection Link below  from my vide...

The Lethal Trifecta: How Your Helpful AI Agent Becomes a Hacker's Best Friend (Beginner Friendly)

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I just wrapped up a training video on something that has been on my mind since I first learned about it: the AI lethal trifecta .  It's something that most AI security professionals know about, however it really is something everyone should know and it's an easy concept to grasp!  Knowing about it could save your entire company from a data breach or worse.  Picture an HVAC coordinator who has too many emails and not enough time in the day so she sets up her Claude desktop agent to respond to customer emails with available dates. Customer emails come in, Claude reads them, checks the company calendar for open slots, and emails back some available times.  This was one of the biggest time sucks of her job. It's a genuinely great use case. She's excited about her new workflow.  It's also, without anyone doing anything wrong, a perfect setup for the lethal trifecta and a hacker to get access to some very sensitive data.  What makes this a Lethal Trifecta? It's...

Why (and How) I Built a Personal Digital Business Card with Claude in 10 Minutes

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I recently signed up for a business networking event, even though I don't own a business, because I wanted to meet people outside the usual tech meetups. The event confirmation email said to bring a business card. A business card? I thought. It's just me — I'm not selling a business. But then I remembered a talk I went to early in my career, given by a powerhouse entrepreneur, about personal branding and how it's so vital for everyone to be able to sell themselves in their career. I looked at what was already out there for digital business cards — scan a QR code and call it done. Except that QR code points to someone else's server, someone else's branding, someone else's app they now have to download. I already have a website. I didn't want a third-party middleman standing between me and the person I just met. So I built my own with Claude. It's a page on my own site — vanessahenson.com/businesscard — with a QR code that scans straight to...