When organizations move to the cloud, they often assume the provider handles security. That assumption causes some of the most common and avoidable breaches we see today. The provider secures the infrastructure. The customer is responsible for how they configure it. This split is called the shared responsibility model, and misunderstanding it leaves data exposed.
Misconfiguration usually means a setting was left open that should have been closed. A storage bucket set to public. A database reachable from the open internet with a default password. An overly broad permission that lets one compromised account touch everything. None of these require a clever exploit. The door was simply left unlocked.
The problem grows with speed and scale. Cloud environments change constantly as teams spin up new services, often without security review. A single careless setting can expose millions of records, and automated scanners run by attackers find these mistakes within minutes of them going live.
Identity is the new perimeter here. Excessive permissions and unused access keys are a gift to an attacker who gets a foothold. The principle of least privilege, granting only the access actually needed, dramatically limits the damage.
The defenses are well understood. Use cloud security posture management tools to continuously scan for risky settings. Enforce encryption and private access by default. Review permissions regularly and remove what is not used.
The cloud is not inherently insecure. It is just unforgiving of mistakes, and most breaches are mistakes, not magic.