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Top 10 tips: Why you should use the cloud and how to do it securely

Everyone has an opinion on the ‘cloud’ and its effect on business – some believe it is dark and scary and fraught with unnecessary risk, while others would argue it’s silver lined and the path to greater business performance and cost savings. The truth is that the cloud undeniably has the potential to open up a whole new dimension of opportunities to businesses – but only if data security is properly addressed.

First let’s dispel any misperceptions you might have about the cloud. It’s nothing mystical, nothing whimsical, - nothing to be afraid of. The reason many fear the cloud is its reputation as a dangerous, or ‘risky’, place. And that is true. Anything beyond the physical perimeter of the organisation is also, theoretically, beyond the physical protection of the organisation. And let’s face it, there are dangers and risks out there, but that doesn’t mean you have to stay behind a locked door. Instead, by arming yourself with the right security you can stay clear of danger and fully tap into the cloud’s potential.

The cloud and security are intrinsically intertwined, and only when both work in symbiosis can a business truly grow. There are five main areas where security can team up with the cloud to offer companies the greatest potential to thrive - and it isn’t hard to get it right.

Five reasons to use the cloud

1.Data protection

Data is key and possibly the most important asset for organisations - a single breach or leak of sensitive data can cripple the entire business, so a data protection strategy must protect the data itself. The ability to move sensitive information into and throughout the cloud is essential for businesses to function and collaborate efficiently, quickly and freely - but this ability must be supported by a comprehensive data protection strategy. The trick is to protect data at the moment of creation, before it moves out of the enterprise or even enters the cloud. Only by doing that can you ensure that any data source is comprehensively protected, and the risk to potential exposure is minimised.

2.Regulatory compliance and data residency requirements

Sensitive data that is moved into and across cloud infrastructures can easily introduce additional complexity and cost to regulatory compliance - potentially costing thousands in fines and damaging reputations. Companies that ensure sensitive data is comprehensively protected can greatly reduce cost, complexity and overall risk in meeting and maintaining regulatory compliance.

3.Scalability and flexibility

The cloud has opened up previously unseen opportunities for organisations to grow and expand quickly, smoothly and with ease. With information immediately available wherever you are, the cloud offers the flexibility and scalability that in the past was an insurmountable obstacle for businesses restricted by their on-site resources. The key to successfully harnessing this opportunity is a flexible data security architecture that is adaptable across multiple applications and systems, while not adversely impacting the user experience. Failure to put a comprehensive, data-centric protection program can cause cloud initiatives to be delayed or fraught with hidden security issues.

4.Cost efficiencies

This element is two-fold. First, reap the powerful cost savings by only paying for what you use. The second element is that most cloud computing platforms provide the means to capture, monitor, and control usage information for accurate billing. A single, comprehensive data protection platform can eliminate the threat of risky fines from compliance breaches or data loss, while also reducing the need to invest into multiple security tools.

5.Access to data anytime, anywhere

Enhancing the opportunity to drive business innovation, the cloud provides remote access to your infrastructure 24/7 for your workforce. No longer will you arrive for a meeting only to find the materials on your USB stick are a previous version. Instead you access the original file wherever you happen to be. Sales teams can check stock levels in real time. An employee stuck at home waiting for a delivery, or in an airport waiting for an ash cloud to disperse, can still work as effectively as in the office.

With so many key business benefits of the cloud depending on security, one would easily be mislead into thinking that a whole host of restrictions have to be implemented to address safety issues. But the truth is, it all comes back to the data. A single framework that comprehensively protects all enterprise data from point of creation and throughout its lifecycle can eliminate practically all potential security hazards that could threaten the cloud.

Five tips for cloud security

1. Leverage data-centric encryption

By encrypting data (regardless of type or source) at capture and protecting it throughout the entire lifecycle wherever it moves, data can be used safely across the enterprise and in the cloud without the need to encrypt and decrypt each time it enters different IT environments.

2.Maintain referential integrity

Format-preserving encryption (FPE) retains the initial structure and format of the data set, encrypting the data while ensuring the structure fits into existing systems without requiring changes in IT infrastructure. FPE also preserves ‘referential integrity’ of the data, which allows the data to be analysed in a protected state, without having to de-crypt it first.

3.Ensure high performance processing

High performance results from eliminating manual encryption and decryption processes as data moves through the enterprise, which removes database performance bottlenecks. A data protection strategy that includes encryption and tokenisation which can be performed locally at the application, database, or webserver level, allows an organisation to dynamically protect terabytes of data, without having to introduce complex procedures, additional technology or interrupt current business process.

4.Policy controls

By giving users or applications permission to decrypt or de-tokenise directly - linking to enterprise data access rules and policies - the extension of enterprise controls into the Cloud can be enabled and user management is simplified.

5.“Stateless” tokenisation

Tokenisation is a way of substituting sensitive data with non-sensitive values, and is one of the prescribed data protection methods recommended under industry regulations, including PCI DSS. Stateless tokenisation eliminates the token database and any need to store sensitive data, as well as the keys that map the tokens to the initial sensitive data. This allows organisations to efficiently address data residency and privacy requirements (nationally or internationally), as sensitive data can be maintained in a valid jurisdiction with only a representation of the data being moved. In-scope data can be securely moved and stored across cloud environments, and only decrypted and used within jurisdictions where it is specifically permitted.

When utilised correctly, cloud-computing capabilities offer numerous opportunities to drive business innovation. Recent technology and social connectivity trends have created a perfect storm of opportunity for companies to embrace the power of cloud to upgrade their existing business models. Could you join them?

Dave Anderson is the Director of Strategy at Voltage Security.

Top image: Flickr (futundbeidl)