Engineering work does not stay at a desk anymore. You review a pull request from a cafe, flash firmware on a device at a client site, pull the latest model file from a coworking space, or SSH into a build server from an airport lounge between flights. The flexibility is genuinely useful. The problem is that public and shared networks were never built to be trusted, and the moment your project data crosses one, it is exposed in ways it would not be on your own network at the office.
This is not a lecture about avoiding public Wi-Fi, which is neither realistic nor necessary. It is about understanding exactly what is at risk when you work over a network you do not control, and using the right layer of protection so that convenience does not quietly cost you your credentials, your source, or ...
Remote development used to be the exception. Now it is how most of us work. You SSH into a build server, push to a cloud VM, flash firmware on a device sitting in a lab three time zones away, or spin up a container that lives on someone else's hardware. It is convenient, and it is also a much larger attack surface than a laptop that never leaves your desk. The code you are writing, the credentials that code uses, and the machines it touches are all reachable over a network, and a network is something other people can reach too.
The good news is that securing a remote dev environment is mostly a matter of doing a handful of unglamorous things consistently. None of it is exotic. The problem is that under deadline pressure these are exactly the steps people skip, and attackers know it.
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Engineers tend to buy tools the way they build them: check the spec sheet, ignore the marketing, and pay for what the job actually requires. A VPN should be no different, yet the category is built to work against that instinct. Every provider claims military-grade encryption, the plans blur together, and the pricing is designed to push you toward a longer commitment before you've decided whether you need one at all.
The problem is that "a VPN" means very different things depending on what you do. Programming a PLC over a public network, accessing a company git server from a hotel, and protecting proprietary CAD files on a personal laptop are three different threat models. Pick by brand or by the biggest discount and you'll usually end up overpaying for features you never touch or, worse, ...
