Top 10 Cloud Security Threats in 2026: Modern Cyber Risks Guide

Wiz research found that 72% of cloud environments have publicly exposed PaaS databases lacking sufficient access controls, showing the real-world scale of misconfiguration risk. Misconfigurations in cloud infrastructure create vulnerabilities that attackers can exploit to gain unauthorized access and disrupt operations. Insecure APIs can expose sensitive data, enable account takeovers, and disrupt services when attackers exploit weak authentication or overly broad access scopes. APIs are the connective tissue of cloud services, handling everything from data exchange to resource provisioning.

Deploy automated asset discovery and maintain a single, centralized inventory across every cloud and account, so nothing runs where you can't see it. The rapid growth of third-party applications, digital identities, and sensitive data stores can lead to cloud sprawl, where you lose track of what is running and where. Map each framework (GDPR, HIPAA, PCI DSS, SOC 2) to specific cloud controls, and use continuous compliance monitoring so drift is caught between formal audits https://hmtf.info/case-study-my-experience-with-3/ rather than during them.

Attackers who had separately compromised a Context.ai employee used the resulting OAuth tokens to take over the Vercel employee's account and move laterally into Vercel's internal systems. The interconnected nature of cloud infrastructure means a https://vectorart1.com/load/articles/news/new_releases_of_all_adobe_products_are_available_for_download_on_creative_cloud/11-1-0-406 single configuration error at the provider level can cascade across services and affect thousands of customers simultaneously. Without automation and continuous monitoring, misconfigurations can persist for weeks before anyone notices.

Business Email Compromise (BEC)

As cloud environments grow in complexity, the window for effective incident response is shrinking. Cloud Audit Logs automatically capture administrative activities and data accesses across Google Cloud resources, providing the essential, tamper-resistant evidence needed for incident investigation. Organization Policy Service and IAM Conditions restrict who can delete critical resources and ensure that service account permissions are minimized through IAM Recommender. Backup and Disaster Recovery (DR) service utilizes Persistent Disk snapshots to create point-in-time recovery (PITR) backups offering operational resilience, system state preservation, and quick recovery of workloads by protecting VM disks and ensuring data integrity.

Google Cloud is following state-sponsored threat groups and ransomware-as-a-service (RaaS) groups that are sabotaging logs and backups to conceal their activity and hinder recovery efforts. Establishing an approved AI Service Catalog can help ensure that LLM tools are sandboxed and governed by corporate data privacy standards. In this incident, detecting the anomalous creation of a new admin role by a CI/CD service account would have triggered an immediate high-priority alert. Use package managers that prevent postinstall scripts or sandboxing tools (such as, Bubblewrap) that could be malicious for developer environments. We recommend a defense-in-depth approach to protect against this type of multi-stage attack, including hardening developer endpoints.

Top 10 Cloud Security Threats

• Additionally, the insiders modified the ACLs to permit over-sharing of corporate data with personal accounts or external third-parties so the information could be downloaded from locations outside of the corporate network.
• IAM Recommender reduces excessive permission and establishes guardrails to prevent external identities and public access with Organizational Policies.
• UNC4899 also modified additional Kubernetes resources specifically tied to the victim's CI/CD platform solution by injecting commands that would output the service account tokens onto the logs.
• Audit data sharing ACLs to ensure only those individuals that have a need-to-know have access to sensitive data.
• VPC Service Controls define a service perimeter that prevents resources from communicating with unauthorized external networks.

Instead of flooding teams with thousands of siloed alerts, Wiz correlates findings from CSPM, CIEM, CWPP, DSPM, and IaC scanning into a single, prioritized view. The group exploits inconsistent IAM controls and fragmented visibility to escalate privileges and persist where no single console sees the whole picture. Security researchers have tracked the threat group Scattered Spider (UNC3944) moving across AWS, Azure, and Google Cloud within a single intrusion, following identities and trust relationships from one provider to the next. Wiz research found that 80% of documented cloud intrusions in 2025 began with vulnerabilities, exposed secrets, or misconfigurations.

Systemic weaknesses lead to amplified impact

Cloud malware injection occurs when attackers insert malicious code into cloud services, which then spreads to other systems. Use user and entity behavior analytics (UEBA) to catch misuse by legitimate accounts, and log and review access to your most sensitive data stores. Current and former employees, contractors, and partners all pose this risk because they already understand the organization's systems and defenses. Denial of service (DoS) attacks flood a cloud service with overwhelming traffic, rendering it inaccessible to legitimate users. Once inside, they can manipulate data, launch further attacks, or use the compromised account as a pivot point to access additional cloud resources.

An advanced persistent threat (APT) is a sophisticated, sustained cyberattack in which an intruder establishes an undetected presence in a network to steal sensitive data over a prolonged time. When these trusted components were compromised or vulnerable, a single failure was able to cascade across many environments. AI adoption introduced new services, identities, data paths, and automation layers into cloud environments. Across publicly documented cloud incidents analyzed by Wiz Research, initial access in 2025 most often relied on long-standing weaknesses rather than new or exotic techniques. See how Wiz connects cloud risks, identity gaps, and AI workloads into a single prioritized view so your team can focus on what actually matters.

How to manage cloud security risks

• Monitor AI agent logs and process execution to identify when an LLM is being used for anomalous discovery tasks, such as generating newline-separated inventories of sensitive system files.
• Grant the federated identity limited permissions to impersonate a separate, downstream Google Cloud service account that has the minimal roles needed for deployment (such as, roles/run.invoker, roles/storage.objectAdmin).
• This case is a classic example of how overly permissive trust in automated pipelines can create a direct path for threat actors to abuse a cloud environment.
• In this incident, if the Github-Actions-CloudFormation role did not have permanent, standing permissions to create administrator roles, the attacker's path to actions on objectives would have been significantly delayed or blocked entirely.
• A perimeter would have blocked the compromised CI/CD role and the subsequent admin role from exfiltrating data or terminating instances, even with stolen credentials.
• To combat the loss of cloud resources and forensic evidence, security defenders should integrate processes for operational resilience, such as additional authorization for sensitive administrative actions, and increased visibility into cloud environments.

These assets are prone to overprivileged entitlements, accidental public exposure, weak credentials, and misconfigurations. In 2024, background-check data broker National Public Data exposed a trove reported at roughly 2.9 billion records — including names, addresses, and Social Security numbers — that it had aggregated with little governance over such sensitive data. T-Mobile's 2023 data breach compromised the personal information of more than 37 million customers, highlighting the risks that emerge when security teams are understaffed and unable to keep pace with evolving threats. Teams become overworked and over-reliant on external resources that may not fully understand their specific environments.

• Specific incidents involved threat clusters retrieving credentials from inadequately secured API endpoints, improperly configured code repositories, and inadvertently exposed infrastructure assets.
• While threat actors continued to use brute-force attacks against weak credentials, the increase in RCE represents a pivot toward more automated exploitation of unpatched application-layer vulnerabilities.
• The most popular means of performing data exfiltration within the sample included theft using email, external storage devices, downloads or transfer through platform-agnostic cloud services, downloads from third-party web applications, printing of documents, and photos / screenshots.
• Google Security Operations (SecOps) correlates API logs with user identity context to identify high-volume egress events.
• As companies protect their data and technical infrastructure, organizations should address external and internal threats.
• High-volume data theft operations—executed through compromised but legitimate access channels—remained the primary goal for threat actors, with our metrics showing they targeted data in 73% of cloud-related incidents.

Eliminate dormant and over-privileged service accounts, adopt just-in-time access so standing credentials don't accumulate, and reconcile human and non-human identities across every provider. In practice, this means a single over-privileged service account can give an attacker the same reach as a cloud administrator. According to the Wiz Cloud Data Security Snapshot, 54% of cloud environments have exposed VMs containing sensitive information, reinforcing the scale of data breach risk. Alex is the lead author of industry security best practices, particularly with the Cloud Security Alliance, Top Threats research group, and the (ISC)2 Israeli Chapter, which he helps champion as a co-chairman. By combining expert perspectives with current industry insights, the group identifies emerging threats, evaluates their potential impact, and develops research that helps organizations strengthen their cloud security strategies. This ensures that incident response scripts can automatically distinguish between a disposable sandbox and a mission-critical database.

The OSDFIR Infrastructure project provides a Kubernetes-native framework that mitigates operational risk by standardizing and automating the deployment of enterprise-grade forensic tools, ensuring consistent incident response capabilities across multi-cloud and hybrid environments. This pipeline automates manual triage activities and centralizes findings, enabling a shift from reactive to proactive response and significantly reducing investigation time. If a compromised instance is auto-scaled away or deleted by a self-healing cluster, the evidence is lost with it. Lack of centralized logs, no detection capability, reliance upon project owner to identify and report the incident