Cloud providers secure the underlying infrastructure, but customers still decide who can access cloud resources, how data is shared, which changes are approved, and how integrations are connected. That is why cloud breaches can stem from ordinary mistakes, weak identity controls, or rushed processes—not just software vulnerabilities. Reducing the risk takes a combination of safer defaults, tightly managed access, visibility, and user-ready processes.
Why cloud security still depends on people
Moving workloads to a cloud service changes who operates the infrastructure; it does not remove customer decisions about accounts, permissions, data, configuration, APIs, or third-party connections. A cloud service can provide security features, but an organization still has to configure and use them appropriately. An employee who shares a link too broadly, an administrator who grants excess permissions, or a team that approves an unsafe change can expose data without an attacker exploiting a software flaw.
Human risk is broader than an employee clicking a phishing link. It includes the policies and processes that determine how access is granted, changes are reviewed, services are connected, and alerts are handled. Attackers may exploit those weaknesses, but accidents and oversight can expose data even without a malicious insider.
What the breach figures do—and do not—show
- Human involvement is common across breaches. Verizon’s 2024 Data Breach Investigations Report analyzed 30,458 security incidents and 10,626 confirmed breaches from 2023. It found that 68% of breaches involved a non-malicious human element, such as a mistake or being tricked by social engineering. The figure describes the breaches in that report, not cloud breaches alone. Verizon, 2024 DBIR.
- Cloud-related issues include both user error and gaps in privileged-account protection. ENISA’s 2024 Threat Landscape cites user error at 31% and failure to apply MFA to privileged accounts at 17% in the survey it references. These are survey findings, not percentages drawn from Verizon’s breach set, so they should not be combined with Verizon’s figure. ENISA, 2024 Threat Landscape.
- Cloud data appears frequently in breach reporting. ENISA reports that 82% of breaches in its cited 2023 data involved data stored in the cloud; 39% spanned cloud and on-premises environments, while 27% targeted cloud data only. Those categories describe ENISA’s reported figures and are not interchangeable with the survey results above. ENISA, 2024 Threat Landscape.
The percentages come from different sources, years, populations, and denominators. Together they indicate that human and organizational weaknesses deserve attention; they do not establish one universal rate for human-caused cloud incidents.
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How people and processes create cloud exposure
Identity and access decisions
Excessive permissions make an account more damaging if credentials are stolen or misused. Missing or weak MFA can make it easier for an attacker with a password to act as a legitimate user. The risk is especially consequential for administrators and other accounts that can change security settings, access sensitive data, or create new users.
Configuration and change control
A permissive storage policy, exposed management interface, unsafe default, or unreviewed configuration change can make resources accessible to people who should not see them. Unlike a software exploit, a configuration error can expose data through an allowed feature behaving as configured.
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Social engineering
Phishing, smishing, business-email compromise, and fake verification prompts try to persuade someone to disclose credentials or take an unsafe action. A successful trick can bypass otherwise sound technical protections if the resulting account has broad permissions or lacks strong authentication.
Everyday data handling
Staff may put sensitive information into unsanctioned applications, share links with too-wide an audience, or copy information between cloud and on-premises systems without the intended safeguards. These actions can create exposure even when the cloud platform itself is functioning as designed.
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Third parties and APIs
Vendors, integrations, and APIs extend the organization’s trust boundary. A connection can inherit permissions or provide a route to data, so an insecure interface or poorly governed third-party resource can magnify a customer’s access-control mistake.
Limited visibility and delayed response
If a team cannot inventory its accounts, data stores, APIs, and connected services—or cannot see access, sharing, and configuration changes—it may not spot a problem in time to contain it. Longer detection and response times can increase the impact of an initial mistake or compromised account.
Rank #4
The Cloud Security Alliance’s 2024 expert survey treats these as a broad set of cloud threats, not merely a phishing problem. Its identified threats include misconfiguration and inadequate change control, identity and access management, insecure interfaces and APIs, insecure third-party resources, accidental cloud disclosure, limited visibility or observability, and unauthenticated resource sharing. CSA, Top Threats to Cloud Computing 2024.
Which controls reduce risk most directly?
| Control area | What it helps prevent or detect | Important limit |
|---|---|---|
| Least privilege and strong authentication | Limits what a compromised or misused account can do; phishing-resistant MFA helps protect high-impact accounts from credential theft. | Authentication does not correct an exposed storage policy or stop misuse by an already authorized user. |
| Secure configuration and change review | Reduces accidental exposure from unsafe defaults, permissive access, or unreviewed changes; continuous checks can identify drift and public exposure. | Reviews and checks only help when they cover the relevant cloud resources and findings are acted on. |
| Inventory, logging, and alerting | Helps teams see which services and connections exist and identify unusual access, sharing, or configuration changes. | Logging without monitoring and a response owner may leave a warning unnoticed. |
| User training and usable reporting | Helps people recognize social engineering and report suspicious messages or actions quickly. | Training cannot substitute for technical safeguards; people can still make mistakes under pressure. |
| Containment, backups, and recovery exercises | Limits how long an incident disrupts service and tests whether credentials can be revoked and data recovered. | Recovery planning does not prevent the initial exposure, and an untested plan may fail when needed. |
MFA deserves careful implementation, not just a checkbox. CISA and NSA identify weak or misconfigured MFA—including the lack of phishing-resistant MFA—among common enterprise misconfigurations, and recommend secure defaults and segmentation. CISA and NSA advisory. For administrators and other high-impact accounts, a FIDO2 security key is one physical way to use phishing-resistant MFA; check that it works with the organization’s identity provider and choose a supported USB or NFC form factor. A key strengthens authentication, but it does not fix misconfiguration or prevent misuse by an authorized insider.
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A practical order for strengthening cloud security
- Inventory the environment. Identify accounts, data stores, APIs, SaaS connections, and third parties. Include the services and integrations teams actually use, not only those already documented in formal IT records.
- Protect the most powerful identities first. Apply least privilege and phishing-resistant MFA to administrators and other high-impact accounts. Review who can grant access, change security settings, or reach sensitive data.
- Make safe configuration the default. Use secure defaults, require peer review for changes, and continuously check for configuration drift and public exposure. Give reviewers a clear way to question or block risky changes.
- Make activity visible. Centralize logs and alerts for unusual access, sharing, and configuration changes. Assign responsibility for reviewing alerts and taking action so detection has a path to response.
- Make safe user behavior practical. Run realistic phishing and reporting exercises, and make it straightforward to verify requests and report suspicious activity. Design processes so the safe action is easier than an improvised workaround.
- Practice containment and recovery. Test credential revocation, incident containment, backups, and recovery. Exercises can reveal whether teams know who must act and whether critical data and services can be restored.
Why cloud security needs accountability as well as tools
Technical controls reduce the chance that one mistaken action becomes a breach, but their effectiveness depends on clear ownership: someone must approve access, review changes, monitor alerts, and lead recovery. Verizon’s 2025 EMEA DBIR makes the same organizational point: Verizon Business Group Vice President and Head of EMEA Sanjiv Gossain said, “Organisations must go beyond guarding against external threats and foster a culture of security awareness and accountability within.” The statement is from Verizon’s EMEA report and should be understood in that context. Verizon, 2025 DBIR EMEA.
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