Free and Open Source Software (FOSS) has earned its place in cybersecurity—it’s flexible, customizable, and backed by a passionate community. But after 20 years in the cyber world, I’ve seen the unique value that Commercial Off-The-Shelf (COTS) software brings to enterprise and government security needs. This isn’t about one being ‘better’ than the other; it’s about choosing what best supports the demands we face daily. While I respect what FOSS offers, here’s why I’d still choose COTS for high-stakes environments.
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