Zero Trust – Six Steps to Success

United Kingdom, Jan 23, 2024

Zero Trust; those buzzwords that you keep hearing about, and you’ve seen the importance of it all. Hackers are smarter than ever and are many steps ahead of the game. Even the most ‘secure’ organisations are hacked, and we read news articles about this all the time.

So how do you really begin your Zero Trust journey? Are you even ready for Zero Trust? Those are some questions and thoughts that might be floating around in every cybersecurity professional’s head when looking at how improvements can be made to their organisation’s security posture. 

The truth is that Zero Trust is not just a set of standards and guidelines, Zero Trust is a strategy, a way for companies to move forwards in the world of security through planning of technology, processes and the implementation of a “never trust, always verify” mantra. We know you’ve heard that before. But are you ready for that?

 

Zero trust is based on three main principles; assuming breach, verifying explicitly, and least privilege access and promotes the following practices:

 

  • Continuous monitoring
  • Behavioural analysis
  • Constant verification
  • Micro-segmentation your network

 

Assuming breach means that you’re on high alert. In terms of your network perimeter, you will no longer assume that everything inside that perimeter is safe. Continuous monitoring and behavioural analysis looks at who is accessing what, when and where, looking out for any activities happening which seem unusual. 

Verifying explicitly means that individuals will need to prove that they are who they say they are and least privilege access supports this by never allowing individuals to access data that they don’t need access to, but only the data they need. This is where verifying your identity would also play a part, known as constant verification

Last of all micro-segmentation will split up your network into smaller segments, so that if an attacker was to gain access to your network, they can’t move across and access sensitive information as easily.

 

Zero Trust – Six Steps to Success

 

Security Practices

A good starting point for assessing readiness for Zero Trust is to evaluate your current security measures on all systems, including your cloud security technology and tools which may be already in place. Review who’s got access to your systems and restrict access to individuals who don’t need it. If too many employees can access the same areas on a network, that creates multiple entry points for a malicious hacker. 

Multi-Factor Authentication

Reviewing methods of authentication would be the next thing to look at. Do you have Multi-Factor Authentication (MFA)? Or are you still accessing your systems with a username and password? If you do use MFA is that method secure or if that can be compromised is key consideration to make when assessing your readiness for Zero Trust. 

Monitoring and Analytics

How is monitoring done in your organisation? Can you log all activities taking place on your systems? Are these up to date, and audited regularly? Does your system flag any unusual activity, for example someone logging in from a location where no one from your workforce resides? Can your systems detect and respond to anomalies in real time? Again, all are important from a Zero Trust perspective where monitoring, flagging, and responding to unusual activities. 

Vendor Management

How are you managing your vendors in ensuring that they are following Zero Trust principles? Are their technologies aligned with Zero trust? Checking that your vendors have secure practices in place is already important for an organisation, especially if they are handling sensitive data. This is essential when addressing the topic of supply chain management and the risks it can present should a malicious individual get into your vendor’s environment.

Network Segmentation

What network segmentation measures do you have in place? Network segmentation is a large focus in implementing a Zero Trust strategy. Assess your current architecture, and how it can be reduced into smaller segments to minimise lateral movement in case of a breach. 

Endpoint Security

Assess what kind of controls are on your endpoints and if you have suitable EDR (Endpoint Detection Response) systems in place to align with Zero Trust access. Are these endpoints encrypted well? How does your security team ensure that the configurations of your endpoints are set up appropriately? Checking all of these ensures that you are prepared to begin your Zero Trust journey. 

 

Zero Trust is for every organisation, and the benefits are so significant that implementing it will help achieve a robust security approach. If you are interested in implementing a Zero Trust strategy, where to start and what it could do for your organisation, Logicalis can help you.

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