Cloud Security Archives

What is CASB? How has data security changed with the cloud?

A Cloud Access Security Broker (CASB) is an on-premises or cloud-based security policy point-of-enforcement. Originally, asset security was simpler since all assets were located on-premises and on the same network, but with time and with an increasingly mobile workforce, security requirements evolved and CASB rose to meet them.

A CASB offers an integrated security management solution to security enforcement such as multi-factor authentication, single sign-on, credential mapping, encryption, tokenization, malware detection, and so on.

What is CASB and how it works?

CASB, a policy enforcement center, consolidates security regardless of device, including unmanaged smartphones or personal laptops. It works through a three-step process that involves Discovery (to compile a list of all third-cloud services and users), Classification (of risk levels of each application), and Remediation (to set security requirements and take action in case of a violation).

A CASB comprises three pillars.

1. Identity and Access Management (IAM)

Gartner defines IAM simply as ‘the discipline that enables the right individuals to access the right resources at the right times for the right reasons.’ IAM solutions help maintain a database of all organization identities and restrict access to org assets based on user identity.

2. Identity Governance and Administration (IGA)

This is a policy-based approach to IAM. IGA serves to support overall IT security and regulatory compliance as well as automate workflows for provisioning and deprovisioning users.

And yes, there is a difference between IAM and IGA. IGA allows organizations to not only define and enforce IAM policy but also connect IAM functions to meet audit and compliance requirements.

3. Privileged access management (PAM)

This is a critical security control that enables organizations to simplify how they define, monitor, and manage privileged access across their IT systems, applications, and infrastructure. It helps control who has access to sensitive systems and protected information. Most employees, for instance, shouldn’t be given access to all critical systems such as production, backup, and financial at the same time.

Privileged accounts can access valuable data and perform special actions, often with low tracking or control. PAM solutions centralize the management of administrator profiles and enforce a least privilege access policy.

To better understand what the CASB concept really means, and how you can adopt it as you secure your SaaS, PaaS, or IaaS environments, contact Akku today.

What is Zero Trust Security?

As organizations increasingly place their data and applications across multiple locations on the cloud, zero trust security is rapidly gaining ground as the network security model of choice among enterprises.

Zero Trust Security is a security model in which a user, irrespective of whether he/she is within or outside the network perimeter, requires an additional verification to get access into a network. There is no particular technology or software product associated with this security model. It simply requires an additional security layer to verify users. This could be anything from biometric verification like thumb-print scanning, or a digital signature verification. Of the two, biometric verification is preferable as it can neither be recreated nor hacked.

Traditionally, organizations have been using what is referred to as the castle-and-moat approach to network security. In this model, the network is the ‘castle’ which is protected by security solutions as a ‘moat’. With this approach, part-of-the-network users were blindly trusted and allowed to enter the castle. However, as companies grew, their data and applications grew with them and the need to split them and store them in multiples silos rose. It also became easier for hackers to gain entry into a “protected” network by accessing a single user’s credentials.

Instead of the castle-and-moat model, adopting the zero trust security model and adding an additional layer of security to a network has been shown to prevent instances of data breaches.

Principles behind zero trust security

1. Trust no one: The model assumes that all the users of the network are potential attackers and hence, no users or systems are to be automatically trusted.

2. Least-privilege access: The users are given access based on a need-to-use basis and nothing more. This can eliminate each user’s exposure to vulnerable parts of a network.

3. Microsegmentation: The entire network is split into segments, each with its own authentication process.

4. Multi-factor authentication: Access to the network requires additional evidence that the user is legitimate.

The network of an organization is its gold mine and most organizations are increasing their spend on network security. Implementing a zero trust security model can go a long way in protecting your network from breaches.

Akku from CloudNow is an intelligent security solution which helps you enforce a zero trust security policy. To know more about its features and how it can benefit your organization’s network security, get in touch with us now.