In AWS, opening too much is expensive

𝗜𝗻 𝗔𝗪𝗦, 𝗼𝗽𝗲𝗻𝗶𝗻𝗴 𝘁𝗼𝗼 𝗺𝘂𝗰𝗵 𝗶𝘀 𝗲𝘅𝗽𝗲𝗻𝘀𝗶𝘃𝗲

The first time I set up a project on AWS, I gave everything broad permissions to make it work fast. 😅

It worked. But it was a time bomb.

When I dug deeper into the real environment I understood that cloud security is not a layer you add at the end — it's the foundation from day one. 🔥

I started with the fundamentals:

🔐 𝗜𝗔𝗠 with per-service roles — each resource only accesses what it needs

🛡️ 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆 𝗚𝗿𝗼𝘂𝗽𝘀 to a minimum — only the ports and IPs that are needed

🔑 𝗦𝗲𝗰𝗿𝗲𝘁𝘀 𝗠𝗮𝗻𝗮𝗴𝗲𝗿 for credentials — out of the code, always

But that's just the starting point. 💻

There are configurations that depending on the environment stop being optional: 𝗩𝗣𝗖 with private subnets to isolate critical resources, 𝗖𝗹𝗼𝘂𝗱𝗧𝗿𝗮𝗶𝗹 to audit every action in your account, 𝗚𝘂𝗮𝗿𝗱𝗗𝘂𝘁𝘆 for automatic threat detection, 𝗞𝗠𝗦 to encrypt data at rest. If you handle sensitive data or have a real production environment, implementing them is not an option — it's a responsibility. 💪

The 𝗹𝗲𝗮𝘀𝘁 𝗽𝗿𝗶𝘃𝗶𝗹𝗲𝗴𝗲 𝗽𝗿𝗶𝗻𝗰𝗶𝗽𝗹𝗲 is not just a good practice. It's what defines whether an incident becomes a disaster or something you can contain. 🚀

What security configurations did you apply in your first cloud project? 👇

Keep flying, Champions! ✈️