Cloud Security Fundamentals

Cloud security looks familiar until you try to apply on-premises instincts to it. The perimeter is softer, the "machines" are ephemeral, and the thing most likely to get you breached is not an unpatched server — it is an identity with too many permissions and an interface open to the internet.

The fundamentals that matter

A few principles carry most of the weight:

• Identity is the new perimeter. In the cloud, what an attacker can reach is mostly determined by the roles and permissions they can acquire. Managing identity and access well matters more than almost anything else.
• Least privilege, actually enforced. Broad, long-lived permissions are the fuel for lateral movement. Granting the minimum, and pruning what is unused, shrinks the blast radius of any single compromise.
• Exposure is a configuration choice. Public buckets, open security groups, and internet-facing endpoints are usually settings, not accidents of infrastructure. Knowing what is actually reachable is half the battle.
• Configuration drift is constant. Cloud environments change by the hour. Security that is only checked at deploy time will be out of date by lunch.

Connect, do not just collect

Each of these is necessary, but none is sufficient alone. A risky permission is only dangerous if it can be reached; an exposed endpoint is only dangerous if it leads somewhere. The real picture emerges when you connect exposure, identity, permissions, and configuration into one view and ask what paths they create together.

That connected view is the foundation Pacifics builds on, starting with AWS: not a longer list of cloud findings, but an understanding of how they combine into real risk — so teams can fix the configuration and identity issues that actually matter.