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Is Your Public Cloud Data Secure?

Is Your Public Cloud Data Secure?

 

With advancing digitalization, business requirements are also developing rapidly. The rise of cloud applications shows no signs of slowing down. More and more organizations continue to adopt cloud computing at a rapid pace to benefit from increased efficiency, better scalability, and faster deployments. According to a report by Linker, the global public cloud computing market is expected to reach $623.3 billion by 2023. The rapid provision of business applications for the introduction of new, improved business processes is central. Many companies consider outsourcing workloads to the public cloud as a priority. High availability, scalability and cost efficiency open up the possibility of implementing innovative operational developments with little effort.

 

As more workloads are shifting to the cloud, cybersecurity professionals remain concerned about the security of data, systems, and services in the cloud. the public cloud exposes business to a large number of new threats. Its dynamic character makes that relying on traditional security technologies and approaches isn’t enough. Therefore, many companies have to rethink the risk assessment of the data stored in the cloud.

 

While moving their workloads into public cloud, companies think that their business is automatically protected. Unfortunately, this security is not certain. Amazon, Microsoft and Google do indeed partially secure their cloud, but it is not their core business or priority. So, in order to cope with new security challenges, security teams are forced to update their security posture and strategies.

 

A report by RightScale shows that average business runs 38% of workloads in public and 41% in private cloud. Usually, enterprises run a more significant part of their workloads in a private cloud (46%) and a smaller portion (33%) in the public cloud. Small to medium businesses, on the other hand, prefer to use a public cloud (43%), instead of investing in more expensive private solutions (35%).

The cloud computing statistics also show the public cloud spend is growing three times faster than the private cloud usage.

 

For this survey 786 IT professionals were questioned about their adoption of cloud infrastructure and related technologies. 58% of the respondents represented enterprises with more than 1,000 employees. For majority of them, more than 50% of enterprise workloads and data are expected to be in a public cloud within 12 months. More than half of respondents said they’ll consider moving at least some of their sensitive consumer dataor corporate financial data to the cloud.

 

Even tough public cloud adoption continues to accelerate 83% of enterprises indicate that security is a is one of the top challenge, followed by 82% for managing cloud spend and 79% for governance.

Workloads and data in a public cloud for all organizations

 
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Securing the environment in the cloud is one of the biggest challenge or barrier in cloud adoption. If companies want to protect their data in the cloud, they must ensure that the environment is used safely. This requires additional measures at different levels:

 

Secure access with Identity and Access Management (IAM)

 

As the data stored in cloud can be access from any location and any device, access control and whitelisting are among the first and strongest measures to safeguard your cloud. Managing people, roles and identities is primordial in cloud security.

In most companies, user rights for applications, databases, and content are maintained manually in separate access lists. Regulations for dealing with security-relevant technologies are also kept in other places. The lack of automation and distributed access management prevent identity or context attributes that are needed for dynamic Identity and Access Management (IAM) from being considered.

Building an identical repository with clearly defined type of access for each user identity and strict access policies is therefore the first step in the dynamic handling of access rights. For example, it can be specified that employee X login is only permitted from certain geographic locations by secure network connection to access only a selected numbers of files.

While these policies can be managed by different individuals with appropriate authority in the organization, they must exist in a single, reliable, and up-to-date location – across all resources, parameters, and user groups.

 

Data loss prevention (DLP)

 

As data is one of your organization’s most valuable assets, protecting it and keeping it secure must be one of your top priority. In order to accomplish this, a number of DLP controls must be implemented in all cloud applications at various levels and allow IT administrators to intervene. «DLP (Data loss prevention) is the practice of detecting and preventing confidential data from being “leaked” out of an organization’s boundaries for unauthorized use. Data may be physically or logically removed from the organization either intentionally or unintentionally. »

 

Data Encryption

 

Sensitive data may not be transmitted through public networks without adequate encryption. Therefore, one of the most effective cloud security measure that you can take is to encrypt all of your sensitive data in the public cloud. This includes all type of data such as the data at rest inside the cloud and archived and backed-up data, or the data in transit as well. This allows you the complete protection in case of any data exposure, as it remains unreadable and confidential based on your encryption decisions. By encrypting properly data, organizations can also address compliance with government and industry regulations, including GDPR.

3 Basic A’s of Identity and Access Management -Authentication, Authorization, and Accounting

 

Identity and Access Management Model

The number of data breach incidents has continued to increase in the past year. Identity and access management is one of the basic security measures in this context to prevent any injuries from these breaches. And the goal of IAM to continuously secure, measure, monitor and improve access to identity and data assets bymaking sure that users can access necessary resources while following a prescribed process. It’s an effective and forward-looking method against data breaches.

 

Down to the basics, a breach of privacy is nothing more than breach of security leading to the accidental or unlawful destruction, loss, alteration, unauthorized disclosure of, or access to, private data transmitted, stored or otherwise processed. Despite all this awareness, most companies take IAM serious only when it is too late. They must not ignore that preventing cybercriminals from entering a network, getting business data, stealing it, and misusing it can be avoided by implementing a multi-layered security approach.

When using identity and access management, remember the basic three A’s: Authentication, Authorization, and Accounting.

 

Authentication

 

Authentication is based on the idea that each individual user has unique information that sets him or her apart from other users to provide proof of identity when they identify themselves. It ensures that the person who logs on to a system is actually the person who claims to be. The easiest way an attacker can access a company’s IT systems is by obtaining someone’s credentials. Like the passwords of any X employee working in any X organization. Phishing, social engineering or simple theft are common methods. The network can not recognize that it is the wrong person and will allow the attacker to access all data that the user has access to. IAM procedures and technologies help to get the authentication problem under control. Authentication can take place as an individual process or can be combined with authorization and accounting.

 

An effective password strategy is the key to an effective authentication process. These include the frequent change of passwords, a strict password policy and processes that protects data from outsiders. The basic problem with passwords, however, is that employees usually have so many of them that they are hard to remember and sometimes they have same passwords for different applications. Single sign-on technologies offer a solution to this problem. SSO means that after a one-time authentication, a user can access all the computers and services that he is authorized to access without having to log in each time.

 

In the meantime, there are also password management tools in which the user can manage, reset and re-assign his passwords via a self-service portal. These tools ensure that the selected password meets the strict requirements.  Most companies are moving toward Multi-Factor Authentication (MFA) or Two-Factor Authentication (2FA) which leverages a static password and challenge question to strengthen cybersecurityby adding a second layer of security that requires additional authentication.

 
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Authorization

 

It’s the process of granting or denying a user access to system resources once the user has been authenticated through the username and password. The amount of information and the amount of services the user has access depend on the rights the users have.Proper and complete authorization is the key to preventing data breaches. Effective IAM solutions ensure that users only have access to the data they really need and are assigned to their login credentials. And these solutions prevent a user from having too much access to sensitive data he should not have by giving sufficient access necessary to perform their required functions, and nothing more.

 

Administrator must have an eye on the access permissions and disactivate the open functions when they are no longer needed in order to avoid any accidental or malicious violations of security objectivesEmployees and service providers who no longer work for the company X should immediately be deprived of their assigned access rights. Without effective identity management, a business cannot be sure who can access what systems and whether an attacker might use accounts to gain access to sensitive data.

 

Accounting

 

Accounting means keeping an eye on user’s activity, access and data they have access to do their jobs while they are on companies’ network. It also includes the amount of time a X user spend to do X job. Having track of all above mentioned activities helps to detect breaches, tracing back to events leading up to a cybersecurity incident and forensic investigations.

 

If all the players of a team pull together and each player fills his position, then no power in the world can bring them down. Security requires a comprehensive approach and implementation of IAM concepts such as strong authentication, granular authorization, and powerful privileged access management and accounting to put cybercriminals in their place.

 

Sources :
–Planning Guide for Identity and Access
–Identity and access management Beyond compliance

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