クラウドセキュリティ: Visibility and insight into all of your cloud infrastructure
Cloud security includes processes, tools, resources and policies to continually assess all assets within your cloud environments to discover and remediate vulnerabilities, misconfigurations and other security issues.
It’s an evolving process, but you can strengthen your program by adopting some cloud security best practices.
In this cloud security guide, learn more about:
Cloud security and emerging tech
CNAPP solutions are evolving to address new needs, including securing AI services and cloud-specific data.
詳細はこちらからData security posture management in cloud security
By unifying security processes, DSPM can help cloud security teams focus on critical cloud risks without additional tools or workflows.
詳細はこちらからTenable Community for cloud security
Connect with cloud security practitioners to ask questions, share tips and get advice about best practices to keep the cloud safe.
詳細はこちらからCloud security FAQ
Explore answers to some frequently asked cloud security and cloud risk management questions.
詳細はこちらからTenable is now FedRamp authorized
With Tenable’s new FedRAMP authorization, you can unify security visibility, close exposures faster and better protect your federal systems and data in the cloud.
詳細はこちらからAlign cloud security with your cybersecurity lifecycle
From asset discovery to benchmarking, you can align your cloud security processes with the cybersecurity lifecycle.
詳細はこちらからCloud security in five minutes
Strengthening cloud security is about proactive, continuous protection across the entire cloud. What could you do if you only had five minutes?
詳細はこちらからIdentity is a critical part of cloud security
Learn how CIEM, as part of a unified CNAPP, can strengthen your data protection and efforts.
詳細はこちらからTenable CNAPP
See a demo of Tenable Cloud Security to learn how it can help you secure your assets across all your cloud environments.
詳細はこちらからGet complete visibility into all of your cloud assets, vulnerabilities and exposures
Eliminate blind spots and secure everything in the cloud
セキュリティチームは、IT のアタックサーフェスを継続的に可視化する必要があります。このアタックサーフェスにはクラウド環境も含まれます。
Traditional vulnerability management tools don’t always work in the cloud. If you’re using them for cloud security, you may end up with blind spots and be even more vulnerable to risks.
Managing your risks in public cloud infrastructure is challenging, but understanding cloud assets' role in your exposure management journey will help you better protect your organization from cyber attacks.
2025 Gartner® emerging tech impact radar: クラウドセキュリティ
Tenable earned recognition as a Sample Vendor in the cloud-native application protection platforms (CNAPP) category in Gartner’s 2025 Emerging Tech Impact Radar.
Tenable’s identity-intelligent approach to cloud security, powered by Tenable One, can help your organization identify cloud threats, remediate risks and maintain compliance across multi-cloud environments.
The report outlines how CNAPP solutions are evolving to address new needs, including securing AI services and cloud-specific data, while expanding to include workload runtime visibility. It also predicts the shift in CNAPP scope as organizations’ security strategies evolve.
The report explores how you can prioritize CNAPP investments based on factors like use case, persona and maturity. These solutions help manage the complexity of hybrid and multi-cloud environments, ensuring compliance and securing workloads, infrastructure and applications.
ホワイトペーパーの内容
- Why CNAPP solutions are evolving to meet the challenges of AI services and cloud-specific data
- Key strategies for managing hybrid and multi-cloud security risks
- How to enhance visibility and compliance across complex cloud environments
- Best practices for securing workloads, infrastructure and applications in public and private clouds
Cloud security maturity model: Vision, path, execution
動的なクラウド環境の保護は簡単ではありません。しかし、運用におけるレジリエンスを確保するには、その保護がますます重要になっています。That’s because organizations are rapidly moving more data, services, and infrastructure to the cloud to reap the benefits of cost-savings, scalability and flexibility.
While cloud security best practices are a great place to start building your cloud security program, some practices can be a bit abstract or ambiguous. As a result, teams spend more time trying to figure out how to implement recommendations than tackling implementation itself. これにより、クラウドのアタックサーフェス全体に盲点が生じてしまいます。
Explore this white paper to get actionable recommendations that eliminate the guesswork.
詳細はこちら
- クラウドセキュリティプログラムの成熟度を評価する方法
- クラウドセキュリティの目標を設定して達成する方法
- What the Tenable Cloud Security model is and how it can help mature your security practices
Data security posture management (DSPM) integrated into Tenable Cloud Security
Tenable Cloud Security integrates DSPM into its CNAPP to prioritize data exposure risks. By unifying security processes, DSPM can help your cloud security teams focus on the most critical cloud risks without additional tools or workflows. It answers key cloud data security questions, such as identifying, classifying and understanding risks to sensitive data in multi-cloud environments.
Key benefits include real-time data analysis, enhanced visibility into new and modified data and actionable remediation guidance to reduce data exposure.
ホワイトペーパーの内容
- How to classify and manage cloud data security risks
- Proactive strategies to reduce the likelihood of data breaches
- Real-time monitoring for sensitive data and anomalous access
- Best practices for enforcing access controls and ensuring compliance
CNAPP: 実用的なクラウドセキュリティ対策でクラウドのエクスポージャーを解決
Rapid cloud adoption has led to increasingly complex and distributed environments, amplifying your attack surface.
The rise of new cloud-based attack vectors combined with known risks create fast-moving threats your security teams may struggle to manage due to fragmented visibility and siloed tools.
Tenable Cloud Security addresses these challenges with its unified CNAPP, which quickly identifies and mitigates security gaps across multi-cloud environments.
You get a full view of your cloud resources, including infrastructure, workloads and data, to prioritize risks and remediate exposures. The cloud security software also helps your security teams recognize anomalous behavior, achieve least-privilege access and demonstrate compliance with regulatory frameworks using simplified reporting.
The solution lowers the mean time to remediate (MTTR) security gaps with detailed, automated guidance.
With scalable cloud expertise, the intuitive interface simplifies cloud security for even the most complex environments. The platform continuously monitors your entire cloud lifecycle, from development to deployment, to stay ahead of evolving threats while improving cloud security posture.
ホワイトペーパーの内容
- Gaining full-stack visibility across all cloud resources
- Reducing alert noise by prioritizing critical risks
- Simplifying compliance reporting with automated tools
- Accelerating security efforts with an intuitive, scalable solution
Best practices for building a hybrid-cloud security strategy
Cloud sprawl is an inevitable challenge as your organization shifts workloads from on-prem data centers to multiple public, private and hybrid cloud platforms. The traditional security perimeter blurs, creating complex environments that demand a new approach to protection.
To secure this hybrid-cloud reality, you must shift security controls left, adopt modern tools and ground strategies around core cloud security principles that lead to hybrid-cloud exposure management.
Hybrid-cloud exposure management gives you a comprehensive view of your cloud attack surface. By combining public cloud, private cloud and on-prem resources, hybrid-cloud models introduce greater agility and increase the potential for cyber risk. Exposure management helps by contextualizing security findings so you can prioritize remediation based on your unique policies, business needs and risk tolerance.
Exposure management normalizes how you identify and manage risk across different environments. It eliminates security blindspots and strengthens defenses against attackers’ lateral movement.
Read this ebook to learn more about:
- How to understand and manage hybrid-cloud environments
- The importance of exposure management for reducing cyber risk
- Five core principles to strengthen your hybrid-cloud security strategy
7 steps to harden cloud security posture
Cloud breaches are alarmingly common, even as your organization invests heavily in threat detection and response tools. The root cause of most of these breaches isn’t sophisticated attacks. It’s poor cloud hygiene. Simple misconfigurations, vulnerabilities or excess privileges can create undetected and unremediated exposures that leave your organization vulnerable.
Three core challenges drive this trend: speed, scale, and skills shortages.
The pace of cloud adoption is relentless, with cloud-first organizations seeing developer-to-security ratios as high as 100:1.
Meanwhile, the complexity of cloud-native architectures — microservices, containers, Kubernetes and infrastructure as code (IaC) — magnify the risk. A single misstep can replicate across environments at scale. Adding to the burden, every cloud platform has its own security tools, best practices and skill requirements, further stretching already overwhelmed security teams.
Exposure management is critical to overcoming these challenges. By focusing on proactive identification, prioritization and remediation of cloud risks, you can shift from reacting to breaches to preventing them altogether.
In this white paper, you’ll learn:
- クラウドセキュリティを産業化し、侵害を防止するための実用的なアプローチ
- Insights into high-profile breaches — and how they could have been prevented
- How to navigate the security-tool acronym soup and choose what to adopt and when
- セキュリティプログラムの成功を評価するための主な指標と考慮事項
Tenable Community for cloud security
Connect with other cloud security professionals
Cloud security is rapidly changing. That’s why you should consider connecting with other practitioners to ask questions, share tips and get advice about best practices to help keep your cloud environments safe.
クラウドセキュリティに関するよくあるご質問
クラウドセキュリティついて質問がある場合は、 ここではよくある質問とその回答を紹介しています。
クラウドセキュリティとは?
クラウドコンピューティングにはどのようなセキュリティリスクがありますか?
While cloud computing offers your organization great flexibility and scalability, it also has a number of security risks. Any time you move your data and workloads off-premises, you lose some control.
For example, Amazon Web Services (AWS) has a shared responsibility model. That means AWS is responsible for physical security of the cloud, but you are responsible for your data and workloads.
また、多くのクラウドプロバイダーはデータやサービスを自社のシステムに集約しているため、ほとんどの場合、攻撃者は少ない労力で多くのデータにアクセスできます。 つまり、クラウド環境に移行することによって、ハッカーの標的としての価値が高まるおそれがあるのです。
Other potential risks include:
- Blind spots in your cloud environment
- Not meeting legal requirements or compliance obligations
- Losing service if your cloud provider goes down or you lose connectivity to your cloud
- Unauthorized access to your data by your cloud provider’s employees
- The potential that you could lose your data stored in the cloud
クラウドセキュリティはなぜ重要なのですか?
Cloud security ensures your data, business workloads, and apps remain safe while stored off-site within a cloud infrastructure.
クラウドプロバイダーの大半は、多くのオンプレミスソリューションに比べて高度なセキュリティを備えています。しかし、クラウド資産を継続的に検出して評価することにより、クラウドに保存されている情報の保護をさらに強化できます。
Whether you’re a business facilitating cloud workloads or an individual needing extra storage for your files, cloud security can help ensure all of your data remains secure.
クラウド攻撃とは何ですか?
ハッカーは脆弱性を悪用して企業をリスクにさらしますが、クラウドはその際の潜在的な攻撃経路となります。
Attackers can attempt to exploit your cloud environments in several ways. For example, an attacker can inject malware to access information stored in the cloud and, once inside, move laterally to affect other systems. クラウド攻撃には、その他にも、サービス拒否 (DoS) 攻撃や総当たり攻撃、ラッピング攻撃、サービスハイジャック、中間者攻撃、インサイダー攻撃、サイドチャネル攻撃など、さまざまな種類があります。
FedRamp
Tenable is now FedRAMP Moderate authorized for Tenable One Exposure Management and Tenable Cloud Security, highlighting its commitment to strengthening cybersecurity for U.S. federal agencies.
These platforms unify security visibility and risk management across IT, cloud and OT environments, to help you better identify and remediate exposures before attackers can exploit them.
The authorization follows the launch of Tenable Enclave Security, designed for highly secure and classified environments.
Tenable One FedRAMP delivers unified risk visibility across all assets, while Tenable Cloud Security FedRAMP can help you secure cloud infrastructure by detecting and fixing misconfigurations, risky entitlements and vulnerabilities.
Aligning cloud security with your cyber exposure lifecycle
クラウドソリューションは、スピード、スケーラビリティ、ユーザビリティがすべてです。クラウドインフラは企業に多くの利点と柔軟性をもたらす一方で、サイバーリスクを増大させる可能性もあります。 資産の検出からベンチマーキングの成功までのクラウドセキュリティのプロセスを、サイバーセキュリティのライフサイクルにおける次の 5 つのフェーズと関連付ける必要があります。
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検出
If your organization has moved processes and applications to the cloud, then you likely know it’s built for speed and can easily scale with it. While that’s great for business efficiencies, it can create new challenges for your security team by inadvertently increasing your cyber risks.
Tenable Cloud Security は、ランタイムインフラにエージェントをインストールすることなく、クラウドプロバイダーに接続して資産をスキャンします。 また、Amazon Web Services (AWS)、Microsoft Azure、Google Cloud Platform (GCP) 全体のインフラのデプロイメントを監視します。
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評価
If you’re using traditional vulnerability management scanning tools for your cloud environments, you may have blind spots within your attack surface. Instead of those legacy tools, harden your cloud infrastructure based on Center for Internet Security (CIS) best practices.
Tenable では、ホストからワークロード、データに至るまで、すべてのクラウド資産の脆弱性、設定ミス、その他のセキュリティの問題を検出できるため、修正の計画と優先順位付けが可能になります。
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優先順位づけ
Once you’ve assessed all the assets across your cloud environments, you should prioritize which vulnerabilities pose the greatest threat to your organization.
Tenable を使用すると、脅威インテリジェンス、エクスプロイトの有無などの脆弱性データを評価することによってリスクを自動で分析できるため、近い将来に企業に影響を与える可能性が最も高いリスクを優先的に修正できます。
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修正
Once you’ve discovered all assets within your IT attack surface — including your cloud infrastructure and discovered vulnerabilities, misconfigurations and other security issues — prioritize them for risk to quickly and efficiently remediate issues.
Tenable enables you to shift left to find vulnerabilities before they reach production. You can create secure machine and container images before deployment to prevent additional vulnerabilities and integrate vulnerability management processes into your CI/CD systems. さらに、API を使用したバグ追跡ツールと修正ツールを使用することで、バグを追跡して修正を DevOps にシームレスに統合できるようになります。
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測定
Finally, all of these steps align to determine your organization’s cyber risk. You can use Tenable’s advanced analytics and scoring to better understand your organizational risk. From there, you can communicate your cloud security program's success and weaknesses to key stakeholders and team members to plan for program growth and improvements.
社内でのベンチマーキングは、プログラムの各部門での効果を分析するのに役立ちます。 また、競合他社との比較によるベンチマーキングは、類似した企業と比較してプロセスの評価を行うのに役立ちます。 そして、その結果をもとにセキュリティプログラムの目標を企業の目標に合わせて調整することにより、より強固な意思決定と計画策定が実行できます。
Protect your cloud environments with a risk-based approach to vulnerability management
クラウド環境を導入することで、組織は新しいインフラを迅速に構築・拡張し、顧客の要求に迅速に対応できるようになります。However, without the right capabilities to detect and manage vulnerabilities and misconfigurations in an ever-changing environment, this speed and scalability can be a double-edged sword.
従来の脆弱性管理では、この新しいパラダイムに遅れずに対応することはできません。ポイントソリューションはすべての脆弱性の一元的な可視性を提供できないため、情報のサイロ化を招きます。
リスクベースの脆弱性管理アプローチを採用することで、セキュリティチームはアタックサーフェス全体にわたる脆弱性を発見しやすくなります。つまり、最も重要な重要なセキュリティ問題、つまり攻撃者が悪用する可能性が最も高い脆弱性に集中できるようになります。
クラウドの脆弱性管理にリスクベースのアプローチを導入する方法の概要を紹介します。
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検出
ダイナミックな環境におけるクラウド資産の特定
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評価
クラウドプロバイダやクラウドネイティブなインフラストラクチャ向けに構築されたスキャンテンプレートとデプロイメントモデルを導入
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優先順位づけ
From development to operations, prioritize which exposures to fix first and leverage powerful integrations to optimize your entire vulnerability management lifecycle.
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修正
From development to operations, prioritize which exposures to fix first and leverage powerful integrations to optimize your entire vulnerability management lifecycle.
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測定
Measure and benchmark cyber risk to make better business and technology decisions.
Tenable helps unify cloud security efforts across your teams
New deployments to the cloud and published vulnerabilities never stop, nor can your cloud security program. Tenable は、すべてのクラウド環境とチームにわたってセキュリティを簡単に拡張できるクラウドセキュリティフレームワークを提供することで、コミュニケーションの改善、セキュリティ、運用、開発チーム全体の労力軽減を実現します。
エクスポージャー管理のブログ記事
Stronger cloud security in five: The importance of cloud configuration security
Cloud misconfigurations are a major risk, but they’re preventable with the right strategies. Solutions like CNAPPs, CIEM, and CSPM can continuously monitor configurations, enforce least privilege and automate compliance across your cloud environments. Strengthening cloud security isn’t just about detection. It’s about proactive, continuous protection across the entire cloud.
How to implement just-in-time access: Best practices and lessons learned
Just-in-time (JIT) access strengthens security by limiting user privileges to only what’s needed — when it’s needed. To successfully implement JIT, you need to automate access workflows, enforce least privilege and continuously monitor and audit usage. It’s about minimizing attack surfaces without slowing down operations.
Choosing the right cloud security provider: Five non-negotiables for protecting your cloud
Choosing the right cloud security provider means finding one that delivers full visibility, continuous monitoring and strong protection for cloud-native environments. Seamless integration with your existing tools and proven security expertise aren’t optional. They’re essential. To stay ahead of threats, you need a cloud security vendor that prioritizes proactive, end-to-end cloud security.
クラウドセキュリティのオンデマンドウェビナー
Protect, comply, innovate: Your 2025 public sector cloud security survival guide
Tenable Cloud Security helps state, local and tribal agencies safeguard data and meet compliance requirements in an increasingly complex cloud environment. This on-demand webinar highlights strategies to close gaps in cloud security, overcome compliance challenges and achieve digital transformation.
このオンデマンドウェビナーの詳細は、次のとおりです。
- Recognizing and closing gaps in cloud security tooling
- Practical strategies to handle resource constraints
- Real-world success stories from public sector organizations
Cloud security’s blind spot: Are you overlooking identity?
Learn how cloud infrastructure entitlement management (CIEM) enhances your cloud security by offering visibility, reducing risk, and streamlining access management. This webinar will demonstrate how CIEM, as part of a unified CNAPP, can strengthen your organization’s data protection and compliance efforts.
このオンデマンドウェビナーの詳細は、次のとおりです。
- Achieving deep multi-cloud visibility and continuous discovery
- Automating risk analysis and remediating excess permissions
- Enforcing compliance and least privilege access
Operationalizing security in your multi- and hybrid-cloud environment
Learn how easy it is to scale Tenable Cloud Security for continuous cloud security assessments and improvements. This on-demand webinar dives into the best practices for operationalizing security in multi- and hybrid-cloud environments.
このオンデマンドウェビナーの詳細は、次のとおりです。
- Overcoming common cloud security operational challenges
- Tailoring Tenable’s deployment plan to your organization’s needs
- Demonstrating key Tenable Cloud Security capabilities
Tenable Cloud Security は、Unified cloud security posture and vulnerability management
Comprehensive cloud visibility and exposure management in a single platform
Gain complete visibility
ハイブリッドクラウド環境全体の資産とエクスポージャーを把握できます。
コスト効率の高い規模拡張
コンプライアンス、修正、パイプラインのガバナンスを自動化します。
Enforce security posture
Eliminate noise and prioritize remediation based on actual risk.
- Tenable Cloud Security
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