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Emerging cloud security threats in 2025: A guide for SMBs

AUG 25 2024   -   8 MIN READ
May 26, 2025
-
8 MIN READ

Cloud adoption is now a core part of business operations. For SMBs moving from traditional systems to the cloud, new security challenges require careful attention. The market for cloud security software is expected to reach nearly USD 37 billion by 2026, showing how many companies are investing to keep their data safe. At the same time, almost two-thirds of security experts believe artificial intelligence will play a significant role in detecting and stopping threats faster than ever before.

Because cloud data is stored remotely and accessed from many locations, it is exposed to new types of risks. For small and medium-sized businesses (SMBs) with limited IT resources, this shift introduces security concerns that are hard to manage without the right expertise. Small mistakes, such as misconfigured cloud settings or accidental data leaks, can lead to significant problems, including lost revenue and reputational damage.

This article looks closely at the most significant cloud security threats to watch in 2025. It aims to help small and medium-sized businesses understand what is at stake and how to stay ahead of these risks.

What is AWS security?

AWS Security is a comprehensive framework that helps protect data, applications, and infrastructure hosted on the AWS cloud. It includes a variety of tools, controls, and services designed to ensure the confidentiality, integrity, and availability of cloud resources.

At the heart of AWS Security lies the shared responsibility model, which defines clear roles for both AWS and its customers:

  • AWS’s responsibility: Protecting the cloud infrastructure itself, including hardware, software, networking, and physical facilities that support AWS services.

While AWS secures the infrastructure, SMBs are responsible for securing data access, implementing strong security settings, and maintaining compliance within their cloud environment. For instance, an SMB in retail needs to ensure that customer payment data is encrypted, and access is limited to authorized personnel only.

  • Customer's responsibility: Securing the resources within the cloud, such as configuring security settings, managing access controls, encrypting data, and maintaining compliance.

This model allows organizations to utilize AWS's strong security capabilities while tailoring controls to their specific needs. AWS Security covers:

  • Network protection through firewalls and traffic monitoring
  • Identity and access management to control user permissions 
  • Data encryption to safeguard sensitive information 
  • Continuous monitoring and automated threat detection 
  • Tools for regulatory compliance and audit readiness

This multi-layered approach helps businesses stay protected against evolving threats while enabling scalability and operational flexibility.

Why SMBs must address cloud-based security issues in 2025

The cloud has become essential for growth, innovation, and cost-efficiency for small and medium businesses. However, relying on cloud platforms like AWS also introduces risks that must be managed proactively:

  • Increasing threat sophistication: Cyberattacks are becoming more frequent and complex, making traditional security solutions less effective against emerging cloud threats. AWS provides services like AWS Shield to defend against DDoS attacks.
  • Data protection and privacy: With sensitive data stored in the cloud, securing it is important to prevent breaches. AWS offers comprehensive encryption and data protection tools.
  • Regulatory compliance: SMBs face multiple compliance requirements across industries and regions. AWS supports compliance frameworks globally, as detailed on AWS Compliance pages.
  • Business continuity: Cloud security incidents can cause costly downtime. AWS services like AWS Config and AWS CloudTrail help monitor configurations and log activity for quick incident response.
  • Scalability needs: As SMBs grow, AWS's security features scale accordingly without compromising protection or performance. For SMBs with limited IT teams, AWS simplifies security management by automating key tasks, ensuring businesses can scale their security infrastructure without additional overhead.

By prioritizing cloud-based security issues in 2025, SMBs can protect their business assets, stay compliant, and maintain customer trust using AWS's trusted security capabilities.

Secure your cloud environment with Cloudtech's expert solutions tailored for SMBs. Cloudtech ensures your business stays protected and efficient from infrastructure modernization to application optimization. 

Major cloud security issues SMBs face

As small and medium businesses increasingly rely on cloud technologies, understanding the top cloud-based security issues becomes crucial. SMBs often face challenges due to limited IT resources and expertise, which makes them attractive targets for cybercriminals. Below are the key security threats SMBs should watch closely in 2025.

1. Data breaches and misconfigured cloud storage

Data breaches continue to be one of the top security threats for SMBs. These breaches occur when sensitive data is accessed without authorization, often due to misconfigurations in cloud storage.

Common causes of breaches:

  • Unintended public access: Cloud storage that is mistakenly configured as publicly accessible.
  • Over-permissive permissions: Giving excessive access rights to users or services.
  • Infrequent configuration audits: Failure to regularly review and update security settings.

How SMBs can prevent data breaches:

  1. Configure Amazon S3 bucket policies: Use S3's built-in access controls to define who can read, write, and manage the data.
  2. Enable AWS CloudTrail: Track all actions made to your S3 buckets to identify unauthorized access attempts.
  3. Enable Amazon S3 Block Public Access: Ensure that no one can unintentionally expose data to the public by blocking public access at the bucket and account level.
  4. Use Amazon Macie: It helps automatically discover and classify sensitive data stored in AWS, such as PII (Personally Identifiable Information), and helps set up compliance and access monitoring.

SMBs can reduce the risk of data breaches by regularly reviewing access settings and using automated tools to manage permissions.

2. Insecure APIs and third-party integrations

APIs are essential for cloud services, but they can also introduce vulnerabilities. Insecure APIs may allow unauthorized data access, data manipulation, or exposure of sensitive information.

How to secure APIs using AWS:

  1. AWS API Gateway: This is used to manage APIs securely by setting rate limiting, authentication, and authorization rules.
    • Rate limiting: Prevent DDoS attacks by controlling request rates.
    • Authentication: Integrate with AWS IAM and use MFA for stronger access controls.
    • Custom authorizers: Add additional logic for finer control over who can access APIs.

  2. AWS IAM (Identity and Access Management):
    • Fine-grained permissions: Control who can access which API resources.
    • Least privilege principle: Only grant the minimum permissions needed.
    • MFA: Adds an extra layer of security by requiring a second form of verification.

  3. AWS WAF (Web Application Firewall): Protect APIs from SQL injections, XSS, and other exploits by integrating AWS WAF with API Gateway.

Example: An SMB that provides online ordering via a mobile app can secure its APIs by using AWS API Gateway, IAM policies, and AWS WAF to ensure secure and authorized access, protecting sensitive customer data from potential attacks.

3. Insider threats and human error

Insider threats are often overlooked but can be just as damaging as external attacks. SMBs face a range of risks, including employees misusing their access or making mistakes that expose critical data.

Types of insider threats:

  • Malicious insiders: Employees or contractors intentionally misusing their access privileges to cause harm.
  • Accidental errors: Employees unknowingly expose data due to phishing or careless handling of credentials.

Preventive actions SMBs can take:

  1. Implement least-privilege access: Use AWS IAM to restrict user permissions based on job roles, ensuring employees only have access to the data and systems they need.
  2. Enable multi-factor authentication (MFA): For all users, especially admins, enforce MFA to add an extra layer of security.
  3. Regular employee training: Conduct frequent security awareness programs to educate staff on recognizing phishing attempts, maintaining strong passwords, and following security protocols.
  4. Monitor user activity: Use AWS CloudTrail to track and log all user actions, enabling real-time monitoring of suspicious activity and providing an audit trail for forensic analysis.

By enforcing least-privilege access, monitoring activities, and training staff, SMBs can reduce the likelihood of insider threats, whether malicious or accidental.

4. Ransomware attacks on cloud resources

Ransomware is increasingly targeting cloud data, with cybercriminals locking data and demanding a ransom for its release. For SMBs, these attacks can halt operations and cause significant financial losses.

Preparation steps for SMBs:

  1. Backup critical data: Use AWS Backup to regularly back up cloud-based data and ensure that it is stored in multiple locations, making recovery easier in case of an attack.
  2. Test recovery procedures: Regularly simulate recovery scenarios to ensure that the business can restore its data quickly. With AWS Elastic Disaster Recovery, SMBs can test failover procedures and validate the RTO and RPO.
  3. Endpoint detection and response (EDR): Use AWS GuardDuty to continuously monitor for suspicious activity and potential ransomware threats, ensuring rapid detection and response.

Ransomware can be devastating, but by maintaining strong backups and proactive monitoring, SMBs can mitigate its impact and minimize recovery time.

5. Lack of cloud visibility and monitoring

SMBs often face challenges with monitoring their cloud environments, which can leave security gaps and increase the risk of security breaches.

Why visibility is crucial:

  • Cloud resources are decentralized, making it harder to monitor in traditional ways.
  • Without adequate visibility, unauthorized access or misconfigurations can go undetected, leading to breaches or compliance violations.

How SMBs can improve cloud visibility:

  1. Use AWS CloudTrail: AWS CloudTrail provides detailed logs of API calls and user activity within the AWS environment, allowing SMBs to track changes and identify potential security issues.
  2. Set up monitoring with Amazon CloudWatch: Amazon CloudWatch provides real-time monitoring of AWS resources, allowing SMBs to set alarms and receive notifications if something goes wrong.
  3. Use AWS Config: AWS Config helps track configuration changes to cloud resources, providing visibility into any deviations from established security baselines.

By implementing continuous monitoring and utilizing AWS’s security tools, SMBs can gain the visibility they need to maintain a strong security posture and quickly respond to any incidents.

6. Shadow IT and unauthorized cloud usage

Shadow IT occurs when employees or departments use unsanctioned cloud applications, creating security vulnerabilities.

Risks of shadow IT:

  • Unsecured Data Storage: Data may be stored in unsecured cloud applications outside the organization's control.

  • Exposure to Cyberattacks: Unmonitored applications may expose the organization to cyberattacks or compliance violations.

How SMBs can manage shadow IT:

  1. Create clear cloud application policies: Develop and enforce policies regarding which cloud applications employees are allowed to use.
  2. Use discovery tools: AWS offers services like AWS Config and AWS Macie to detect unauthorized cloud resources and monitor sensitive data.
  3. Foster communication: Encourage collaboration between IT and business units to understand cloud needs and ensure proper security measures are in place for new applications.

By taking a proactive approach to managing shadow IT, SMBs can reduce security risks and ensure that their cloud infrastructure remains compliant and secure.

Practical steps for SMBs to strengthen cloud security

Steps to secure cloud security

Cloud-based security issues pose significant risks for SMBs, but effective protection is achievable with focused actions. Below are practical steps SMBs can implement to safeguard their cloud environments while managing costs and complexity.

1. Cost-effective security tools for SMBs

SMBs often face tight budgets but can still access strong security tools for smaller operations. Essential solutions include:

  • Endpoint protection software.
  • Firewalls integrated with cloud platforms.
  • Multi-factor authentication (MFA) to secure access.

Many cloud providers bundle these features, allowing SMBs to activate them without additional expenses. Choosing the right tools that fit the business size avoids unnecessary spending while improving defenses.

2. Employee training and awareness programs

Human error remains a leading cause of cloud security breaches. Regular training empowers employees to:

  • Recognize phishing attempts.
  • Maintain strong password practices.
  • Handle sensitive data responsibly.

Creating a security-aware culture reduces vulnerabilities related to social engineering and careless mistakes. This step complements technical controls by strengthening the human element.

3. Managed security services personalized for SMBs

For SMBs lacking in-house security expertise, managed security service providers (MSSPs) offer a cost-effective alternative. These services typically provide:

  • Continuous monitoring of cloud environments using tools like Amazon CloudWatch and AWS GuardDuty.
  • Rapid threat detection and response with services such as AWS Security Hub, Amazon Detective, and AWS Shield.
  • Customized security management aligned with SMB needs through AWS Identity and Access Management (IAM) and AWS Config.

Outsourcing security functions ensures expert oversight and reduces the operational burden on internal teams. 

4. Implementing zero-trust access control

Zero-trust security requires verifying every access request, regardless of user location or device. SMBs can adopt zero-trust principles by:

  • Enforce strict identity verification for all users.
  • Granting least-privilege access based on roles.
  • Regularly reviewing access permissions.

This approach limits attack surfaces and helps prevent unauthorized access, especially from compromised credentials or insider threats.

5. Routine cloud security audits and risk assessments

Ongoing evaluations help SMBs stay ahead of cloud-based security issues by:

  • Identifying vulnerabilities and misconfigurations.
  • Ensuring compliance with relevant regulations.
  • Updating security policies to address emerging threats.

Regular audits and risk assessments promote a proactive security posture and enable timely adjustments to defenses.

By combining affordable tools, informed employees, expert-managed services, and disciplined security practices, SMBs can build a resilient cloud security framework. This strategy reduces risks and supports sustainable business growth in the face of evolving cloud threats.

Emerging cloud security trends SMBs should monitor

Cloud security trends

As SMBs increasingly rely on cloud technologies, staying aware of key security trends helps manage cloud-based security issues effectively and protect valuable data.

1. Use of AI and automation in threat detection

AI-powered tools are transforming threat detection by providing continuous, automated monitoring. For SMBs with limited resources, this means:

  • Faster identification of suspicious activity.
  • Reduced response times to incidents.
  • Lower false alarm rates through intelligent analysis.

Automation allows security teams to focus on important issues, improving overall defense against evolving threats.

2. Security challenges in multi-cloud and hybrid environments

Deploying services across multiple clouds or combining public and private clouds offers flexibility but also complicates security. SMBs face challenges such as:

  • Ensuring consistent security policies across platforms.
  • Preventing misconfigurations that create vulnerabilities.
  • Managing an expanded attack surface.

Addressing these challenges requires standardized controls and dedicated monitoring tailored to each environment to reduce cloud-based security risks.

3. Increasing emphasis on identity and access management (IAM)

Securing user access remains a priority. SMBs are strengthening IAM by:

  • Implementing multi-factor authentication (MFA).
  • Defining precise role-based access controls (RBAC).
  • Regularly reviewing access permissions.

These steps help prevent unauthorized access and limit damage from compromised accounts.

Conclusion 

Small and medium businesses face increasing challenges with cloud-based security issues as they expand their digital infrastructure. Understanding these threats is essential to protect sensitive data and maintain business continuity. By recognizing common vulnerabilities, SMBs can take informed steps to strengthen their cloud security posture.

Investing in cost-effective cloud solutions that prioritize security helps businesses avoid costly breaches and downtime. Modernizing infrastructure and optimizing applications are key to balancing performance with protection. With the right approach, cloud computing supports current operations and scales to meet future demands without compromising security or budget.

Cloudtech provides tailored cloud services designed to help SMBs improve security while maximizing their cloud investment. From data modernization to application optimization, Cloudtech's experts ensure efficient, secure, and scalable cloud environments for growing businesses.

Explore Cloudtech’s services to address your cloud security challenges and drive sustainable growth with solutions built for SMBs.

FAQs

  1. How can SMBs balance cloud security needs with limited IT staff?

SMBs can adopt managed security services to extend their IT capabilities. These services provide continuous monitoring, expert threat response, and tailored security management without needing a large internal team.

  1. What role does encryption play beyond data storage in cloud security?

Encryption protects data not only at rest but also during transmission and processing in the cloud. This multi-layered approach reduces exposure risks from interception or unauthorized access across all cloud interactions.

  1. How does compliance with industry standards reduce cloud-based security issues?

Following recognized compliance frameworks helps SMBs implement proven security controls and processes. This structured approach minimizes vulnerabilities and ensures regulatory requirements are met, lowering the risk of penalties and breaches.

  1. What should SMBs consider when selecting a cloud provider to improve security?

SMBs should evaluate providers on their security certifications, transparency around shared responsibility, available security tools, and support for compliance needs. Choosing a provider aligned with business goals strengthens overall cloud security posture.

With AWS, we’ve reduced our root cause analysis time by 80%, allowing us to focus on building better features instead of being bogged down by system failures.
Ashtutosh Yadav
Ashtutosh Yadav
Sr. Data Architect

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