In today’s business environment, the use of cloud services is expanding rapidly, and the associated information security issues are also increasing. CASB (Computer Access Security Platform) is attracting attention in this situation. CASB is a general term for security solutions that allow companies to safely use cloud services, but how does it differ from SASE (Sydney Access Security Platform), which is also an important concept in security?
In this article, we will take a closer look at what CASB is, its key features, the benefits of adopting it, and how it differs from SASE.
What is a CASB?
CASB (Cloud Access Security Broker) is a solution that ensures security and maintains compliance when companies use cloud services. In recent years, as the use of cloud services for business purposes has increased, managing and protecting them has become a challenge. CASB is a tool to address this issue, and plays a role in visualizing and controlling the use of cloud services.
Key features of a CASB
A CASB has four main functions:
・Visualization and monitoring
It provides visibility into all cloud services used by companies and monitors them in real time, making it possible to know which users are using which services and to detect abnormal activity early.
Data protection
It provides data classification and encryption, DLP (Data Loss Prevention) functions, and other features to prevent confidential information from leaking, and strengthens access control to ensure that only users with the appropriate permissions can access data.
Compliance management
Businesses must comply with various regulations, and CASBs provide the tools to meet compliance requirements in a cloud environment, helping businesses meet legal requirements and industry standards.
Threat prevention
It is equipped with security features such as malware detection and prevention, account hijacking prevention, and abnormal user behavior detection. It reduces security risks when using cloud services, and can also be used in combination with other features to deal with internal fraud.
The difference between CASB and SASE
When it comes to the topic of cloud security, SASE is frequently mentioned along with CASB. Understanding the difference between the two is important in taking appropriate security measures, so let’s take a look at the differences between them along with an overview of SASE.
What is SASE?
SASE (Secure Access Service Edge) is a new approach to cloud security, a solution that integrates network and security. While traditional network security relies on physical boundaries, SASE is cloud-based, enabling flexible and scalable security.
For more information on SASE, please see this article:
→ ” What is SASE? Explaining the differences and relationship with Zero Trust “
The difference between CASB and SASE
SASE is not only a cloud security solution, but also a concept and way of thinking. While CASB is a tool for making cloud services safer, SASE integrates network and security.
The differences between the two can be easily summarised in the following table:
| Role and Scope | Technology Integration | Form of delivery | |
| SASE | Achieving Zero Trust and Network-wide Security | A comprehensive solution that integrates technologies such as SD-WAN, CASB, FW, and ZTNA. | Cloud Native |
| CASB | Safe cloud usage, security for using cloud services | Specializing in making cloud services safe | Cloud service or on-premise |
SASE and CASB may seem similar at first glance, but in reality, CASB is used as one of the functions and means to realize SASE.
Benefits of Introducing CASB
The benefits of implementing a CASB include:
- Strengthening security measures
- Flexible Access Management
- Maintaining Compliance
- Optimizing Cloud Usage
- Threat detection and response
CASB monitors the use of cloud services and prevents information leaks by providing data encryption and data loss prevention (DLP) functions. It also has the ability to detect abnormal activities in real time, allowing for rapid response. In addition, different access permissions can be set for each user, allowing access only to necessary data and services, enhancing security. These security measures are effective against the recent increase in the use of cloud services for business purposes and remote work.
In addition, CASBs provide the tools and capabilities to help companies comply with various regulations such as GDPR and HIPAA, and they also provide visibility into cloud service usage, helping to reduce unnecessary costs and streamline operations.
In addition, the AI function can detect attacks that could not be detected by conventional security solutions, significantly strengthening a company’s security system.
Incorporate a CASB into your security strategy
CASB is an essential security solution in today’s world where the use of cloud services is increasing. By implementing CASB, companies can effectively use cloud services while reducing security risks and maintaining compliance. By incorporating CASB into your security strategy, your company’s IT infrastructure will become safer and more efficient.