Understanding the Attack Surface of the Internet

**Executive summary:** This article summarizes Censys research on the evolving Internet attack surface, highlighting rapid cloud adoption, widespread HTTP services (including on non‑standard ports), and that misconfigurations (~60%) and exposures (~28%) account for the bulk of observed risks (88%) while CVEs/exploits represent roughly 12%; it advocates continuous Attack Surface Management (ASM) to discover, prioritize, and remediate assets and includes illustrative stats and a short quiz.