As far as the transition of business processes to the cloud is concerned, this changes the perspective of organizations toward the security issues. Instead of worrying about securing physical machines and network borders, security experts have to think about identities, applications, data, endpoints, configurations, and fluctuating workloads.
This transition brings both advantages and security concerns into play. Cloud computing can offer centralized management and security tools that are not always available in on-premises environments.
In terms of security, cloud computing can help organizations to secure their data, increase visibility, manage access, and respond to security events with their environment evolution. Here are 7 major advantages that organizations can benefit from in case of using cloud infrastructure.
1. Stronger Protection for Business Data
One of the core cloud security benefits is the ability to apply security controls across data as it moves between applications, users, devices, and cloud environments. Instead of using one security barrier, multiple layers of security can be used by the business to control the handling and access of information.
A business can employ such measures as encryption, access control, identification, and monitoring to mitigate risks of information exposure. Such controls are necessary, in particular, since the business handles customer information, financial information, intellectual property, and other sensitive business data.
Nevertheless, good data protection is not complete without deciding who should have access to certain information, where it is located, and what kind of security controls must be applied to that information.
2. Greater Visibility Across Cloud Environments
It is challenging to maintain visibility of all the systems using traditional infrastructure with the addition of remote users, applications, and workloads.
Cloud environments can help in centralizing the security information and increasing the visibility of activities across the resources. Authentication attempts, configuration changes, network traffic, application behavior, and many such events can be monitored through cloud environments.
It will also help in making informed decisions. The team can create inventories of workloads, users, permissions, and other connected resources.
3. Faster Detection and Response
Security threats can emerge fast. If there is delay in responding to the threat, it may give the attacker more time to move around within the environment and gain access to more data.
Automated detection of cloud-based security features could help detect any anomalies in an environment at an earlier stage than traditional monitoring methods. Automation could detect unusual activities like suspicious authentication, configurations, and network activities.
Automation would also aid in automating the response. An organization may take action like disabling the affected account or isolating a suspicious workload and requiring further authentication based on anomalies detected.
Rather than managing all incidents manually, automation could assist in reducing tedious tasks for security professionals.
4. More Consistent Security Controls
With the growth of businesses, it is getting harder to maintain consistency in security policies. Various teams will have their own way of configuring the system which attackers may be able to take advantage of.
Cloud security allows the implementation of policies as well as repeatable configurations. Teams may create their own policies related to the management of identities, encryption, network segmentation, logging, and access control for the supported workload.
The policy and configuration will assist security operations in identifying the inconsistencies since there are already defined policies and consistent configurations.
Nonetheless, cloud security is also dependent on configuration because of the shared responsibility.
Cloud Security Responsibility by Service Model
| Area | IaaS | PaaS | SaaS |
| Physical infrastructure | Provider | Provider | Provider |
| Operating system | Customer | Provider | Provider |
| Applications | Customer | Provider | Customer |
| Data | Customer | Customer | Customer |
| Identities and access | Customer | Customer | Customer |
| Configuration | Customer | Customer | Customer |
This segregation depends on the particular service, and hence it is wise for organizations to identify the responsibilities involved in moving workloads, and not assume that all security responsibilities have been transferred.
Before implementing these controls, it would be wise for the team to map the security responsibilities in relation to the various services used. Cloud security shared responsibility guidance would enable the team to appreciate the differences in the responsibilities of the provider and customer with respect to infrastructure, platforms, and software services. Cloud Security Fundamentals for Businesses could also be considered during policy formulation.
5. Easier Security Scaling
The needs of any business organization change quite frequently. The business might have more employees, use more applications, enter into new geographical regions, or even have sudden spikes in traffic.
Another of the many cloud security advantages is the capacity for scaling security in conjunction with workloads. Businesses can increase their resources and monitoring capabilities without investing in hardware each time there is an increase in needs.
6. Improved Resilience and Recovery
Security is not only about prevention. Organizations should be able to prepare themselves against service disruptions, accidental data loss, infrastructure failures, and similar situations that impact their availability.
There are several ways to provide resilience within a cloud environment. This could include, for example, distributed infrastructure, backup, redundancy, recovery, etc. With proper design of these features, businesses will be able to recover from incidents by restoring crucial services and data.
Nevertheless, resilience still requires planning. This includes identification of critical workloads, setting of recovery objectives, testing of backups, and recovery assignment.
Depending on the service, there might be a situation where a provider controls the infrastructure and the customer needs to take care of application and data recovery.
7. Better Support for Security and Compliance
In certain sectors, where companies must show that there are controls in place for secure handling of sensitive data, cloud security may be helpful.
It could do that through the ability to log, manage access, encrypt data, monitor and enforce policies. Such controls would allow documenting the security of an environment as well as analyzing activities in case it becomes necessary.
Centralization of information might reveal any weaknesses before an audit or review. Cloud security should take into account not only compliance but also risk management.
However, compliance should not be the only goal. The system could meet all the items on a checklist but have security vulnerabilities at the same time.
What Businesses Should Consider Before Moving to the Cloud
The advantages of cloud security are best realized when companies take into account a security strategy as they plan their migration process. Some of the things that need to be considered before moving to the cloud include:
- Determining sensitive data and critical workloads.
- Evaluating user identities and their access requirements.
- Defining security responsibilities for each cloud service.
- Determining the monitoring, logging, backup and recovery requirements.
- Periodic configuration evaluation as workloads change.
By doing so, they can avoid the common pitfall of treating cloud migration as an infrastructure issue and then tackling security later on.
Cloud Security Is an Ongoing Process
Cloud migration may create a new security landscape, but it will not eliminate the requirements of owning security. Enterprises will continue to have to manage their identities, protect their data, configure their services properly, detect activity, and respond to incidents.
The cloud environment offers many options for achieving that goal. The shared responsibility model usually means that cloud vendors will secure the underlying infrastructure, but that enterprises will own everything else. This is something that businesses should check.
There is also a need to conduct security assessments on a regular basis. Applications, personnel, integrations, and workloads may bring new risks and, hence, require rechecking security controls.
Frequently Asked Questions
1. What is cloud security?
Cloud security entails the strategies, technologies, policies, and control processes that protect cloud environments. They include Identity and Access Management, encryption, monitoring, threat detection, configuration management, and data security.
2. Does moving to the cloud make a business more secure?
The move to cloud offers access to scalable security services and infrastructure management, but that does not mean that security risks are reduced. The customer still needs to manage the data, identities, permissions, and configurations, among other areas.
3. What is the shared responsibility model?
The shared responsibility model involves the allocation of security responsibilities between the cloud provider and customer. Typically, the cloud provider takes care of the infrastructure, while the customer has the responsibility of taking care of the workload, data, identity, and configuration of the cloud.
4. What is the biggest consideration when adopting cloud security?
One very important aspect of adopting cloud security is knowing which aspects of security will still be the responsibility of the business.