Why a Cloud Access Security Broker (CASB) is Important for Companies


As the digital world is deeply embedded in people's lives, the primary concern of storing data on the cloud is security. The last thing anyone wants is to have their information stolen and used unlawfully by cybercriminals. The same goes for companies.

If a company uses the cloud, then a CASB is compulsory. It’s considered one of the top information security technologies any company needs today. Massive adoptions of applications and cloud services have created new targets and threats. As long as employees in your company can connect to the social space, which includes Dropbox, Twitter, or Facebook, a CASB is essential.

Due to the common use of mobile devices, companies constantly interact with users they don't manage. Systems, applications, and data are regularly in contact with tablets, laptops, and smartphones that a company can't control. Therefore, CASB security works by eliminating any human error security failures in the cloud. This means a CASB system eliminates manual and people-centered cloud security approaches.

Introducing CASB

A CASB uses automation and machine learning to provide central control points that ensure compliance and secure cloud use by multiple providers. This protection works around four key components: compliance, visibility, data security, and threat protection.

Companies commonly assume that their cloud service provider handles their security needs. This isn't always the case, as cloud service providers have the main responsibility for the security of the cloud. As a company, you’re responsible for securing your own content on the cloud. It's important to note that enterprise SIEM security investment doesn't include cloud security. The great news is that CASB integrates seamlessly with SIEM to provide maximum security.

4 Pillars of CASB

CASB works by following the four pillars of design used when building them.

1. Threat Detection

Every business, regardless of size, faces a chance of being attacked by malware. The evolving ransomware virus is also another factor to consider. If, by chance, ransomware accesses any files on the cloud, it means the backup files can be easily deleted and any data in the source path encrypted.

To secure a system from malware and ransomware attacks, you need to detect them first, and this is where CASB comes in. Advanced learning algorithms detect any risky application behavior, exposing areas of potential risk. The CASB reporting and analytics feature enables active threat detection.

2. Compliance

Compliance in CASB shows that a business and all its resources, apps, and data follow all security standards stated by industry security regulators. Compliance is also considered one of the top reasons why enterprises need a CASB.

3. Data Protection

A CASB can be easily customized as a cloud software solution. Businesses can configure to meet their security needs easily. This means it acts to protect data stored on cloud apps. A company can form configuration rules to the most minor level of detail.

This means only authorized users can access this information. Additionally, a business can configure particular access permissions for user groups. This ensures tight security on the network's IP, time-based restrictions, user location and the device used.

4. Deep Visibility

As a business owner, knowing who is accessing any company data is essential. Even with the best firewalls in the market, securing information from threats can sometimes be difficult, especially from internally authorized users or any installed application.

A CASB ensures that monitoring activities is easy while gathering information on suspicious activities. With a CASB, businesses can also get reports for SOC teams and detailed insight into potential data leaks.

What are the Top Three Uses for a CASB for Companies?

1. Secure Data

A CASB protects and prevents the loss of sensitive data in your environment. Advanced enterprise data loss prevention (DLP) allows entities to protect sensitive data in sanctioned cloud services to and from a cloud service. This also refers to sanctioned and unsanctioned data and works, whether remote or on-premise. A CASB does this by combating loss of data through tokenization, encryption and upload prevention.

2. Govern Usage

CASBs work well at discovering shadow IT behaviors. They can govern cloud usage with granular control and visibility. They don't use a uniform approach when blocking services; instead, CASBs allow entities to govern usage through service, identity, application, data, and activity.

Additionally, the system allows policies to be defined by service category or risk. To enforce policies, they can choose from actions such as alert, block, encrypt, bypass, coach, and quarantine. This means the IT team can take action against any policies put in place.

3. Protect Against Threats

As already mentioned, it safeguards against ransomware and malware. By using anomaly detection and threat intelligence, the entity gains full visibility of all cloud services, including those that are SSL encrypted connections of compromised user accounts. CASB then uses special anti-malware detectors to detect any ransomware.

Conclusion

As threats continue to innovate their approaches, a CASB system should also do the same. Using a CASB is no longer an option for entities that use the cloud, but it will maximize security for any data on the cloud.

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