Cybersecurity should be a top priority for businesses and organisations that aim to succeed in today’s era. Zero Trust is one of the new cybersecurity philosophies that organisations are adopting to enhance their security. Before the development of Zero Trust, the primary focus of cybersecurity teams was on threats originating from outside an organisation’s network. However, this model wasn’t reliable since it is possible that threats can come from within.
Many experts consider Zero Trust to be one of the most dependable strategies for businesses to counter the rising cases of cybercrime in modern society. If you are interested in learning more about Zero Trust, this article is for you. In this article, we will discuss everything you may need to know about Zero Trust, how it works, its core principles, and how it affects the future of cyber security.
What is Zero Trust?
Zero Trust is a cybersecurity philosophy that assumes all users, their devices, and any apps or systems connected to the network are not safe and therefore need verification before gaining access to an organisation’s network. With this philosophy, access to the network resources of the organisation is granted only after strict authentication, and authorisation protocols have been followed.
Before Zero Trust, people and devices within the local network could access an organisation’s IT infrastructure at any time without undergoing vigorous authentication and verification. This has all changed with zero trust. Even the general manager or CEO of a company cannot access the network unless they go through the required authentication and verification procedures.
Some of the strategies organisations use when implementing zero trust include multi-factor authentication, encryption, and continuous monitoring and assessment of all network activity. Ultimately, the main objective of Zero Trust is to ensure that only legitimate and trusted parties get access to sensitive data and systems.
Core principles of Zero Trust
Zero Trust has five core principles, and these include the following;
1. Continuous monitoring and assessment
This involves full-time monitoring of all activities on the organisation’s network to detect and respond to any security incidents in real time as they happen. This allows the cybersecurity team and other relevant stakeholders of the organisation to take action before the security loophole or a cyberattack causes fatal damage.
2. Micro-segmentation
In Zero Trust, micro-segmentation involves isolating the organisation’s network resources to limit the potential damage in case of a data breach or any other cyber-attack. Each of the segments has specific security rules that users need to abide by before accessing the network and when using it. Organisations can use this strategy to separate critical systems from the less-critical ones.
3. Least privilege
The principle of least privilege requires organisations to control the level of access users, and devices get when using the network. Each user or device is only allowed to access sections of the network that are just enough to perform their day-to-day tasks. That means an attacker will have limited access to the network even when they compromise one of the user accounts.
4. Risk-based decision making
With Zero Trust, security decisions are based on risk assessments and continuous monitoring. The cybersecurity team needs to do a proper assessment to determine the organisation’s resources each user or device gets.
5. Verify before granting access.
This is the main principle every organisation using Zero trust must implement. As we shared earlier, the Zero Trust philosophy assumes that all devices, users, and systems are a risk to the network. So, access is only granted after thorough authentication and authorisation using pre-determined security rules.
How zero trust will impact the future of cybersecurity
Zero Trust addresses the security challenges of remote work
The shift to remote work and cloud computing has made it more difficult to maintain traditional security perimeters, but Zero Trust helps organisations secure their data and systems by verifying the identity of users and devices and controlling access to network resources.
The drastic shift to remote work gave attackers a huge opportunity to access the IT infrastructure of organisations that didn’t have tight security measures. Organisations that use Zero Trust are in a much better position to deal with most of the common cyber-attacks today.
Lower risk of data breaches
Organisations that implement the zero-trust model will likely experience lower rates of data breaches in the next couple of years. By implementing strict authentication and authorisation procedures and continuously monitoring network activity, organisations can reduce the risk of data breaches and protect against cyber threats.
A significant number of data breaches usually happen when attackers get access to log-in details for one of the employees of the target organisation. Such attacks can be eliminated with the tight verification and authentication procedures implemented in the zero-trust model. With 2-Factors authentication, attackers won’t have a chance of accessing an organisation’s infrastructure even if they get access to the login credentials of an insider.
Accelerate cloud computing adoption.
Zero Trust is well suited to address the security challenges of cloud computing, helping organisations to authenticate and authorise users and devices. Security mechanisms such as data encryption, 2-Factor authentication, and micro-segmentation will give organisations peace of mind when they deploy their IT resources to the cloud.
The Zero Trust model also includes continuous monitoring of network activity to detect and respond to any security incidents as soon as they happen. Real-time monitoring of network activities enables organisations to maintain visibility and control over their security posture, even as they move to the cloud.
Improvement in data security
Organisations that implement the zero-trust model will likely have fewer data security issues than those that stick to the traditional security models. Zero Trust emphasizes encryption, continuous monitoring, and risk-based decision-making, which helps organisations to better protect their sensitive data against cyber-attacks.
Challenges of Zero trust and the future of cybersecurity
Despite the many benefits, zero trust has several challenges that all the relevant stakeholders need to find solutions (or workarounds) to encourage more adoption of this security philosophy. Some of these challenges include;
1. Zero trust affects the user experience.
Employees of any organisation would love to access files and other resources on the network without going through several verification procedures such as 2-Factor authentication. Having to go through the many authentication and verification procedures of zero trust is seen as a waste of time, especially by people who are not well-versed in the good practices of cyber-security.
To fix this, organisations need to sensitize their staff to ensure they know why verification procedures like 2FA are necessary. It should be noted that new verification technologies like Passkeys will soon become mainstream and could fix some of the user experience issues associated with zero trust.
2. Complexity
One of the reasons many organisations (especially the small ones) are not adopting the zero-trust model is because of the complex procedures during its implementation. Implementing Zero Trust can be complex, requiring organisations to integrate multiple security technologies for managing and monitoring multiple security domains.
3. High cost of implementation
Cost is among the reasons many small businesses and startups are delaying implementing the zero-trust security philosophy. Implementing Zero Trust can be expensive, requiring organisations to purchase and deploy new security technologies, such as identity and access management (IAM) systems.
It also requires training staff to learn how the zero-trust philosophy works. These are costs that businesses with small security budgets may not be willing to invest in.
4. Integration with legacy systems
Many organisations still use legacy technologies that do not work seamlessly with new security technologies. Zero Trust requires organisations to integrate their existing security systems with new security technologies, which can be frustrating and time-consuming. This alone is enough for some organisations to avoid Zero Trust, even when they are aware of its benefits.
5. Mindset shift
Several organisations need to go through a mindset overhaul before they can adopt zero trust. Most of these organisations are still stuck with legacy security philosophies that used to work decades ago. Such mindsets can only be changed if the right stakeholders demonstrate to these organisations that transitioning to zero trust will actually make their IT infrastructure more secure.
Final thoughts
Zero Trust is a growing philosophy that savvy organisations are adopting to bolster the security of their IT infrastructure. With Zero Trust, all users are treated equally during the authentication and authorisation process before being granted access to an organisation’s network. Implementing the Zero Trust philosophy can significantly enhance an organisation’s security and resilience against cyberattacks.
If you want to effectively implement Zero Trust and other security measures, consider exploring our Zero Trust Implementation Service. Our objective is to relieve you and your team of all security-related operations and guarantee that your organisation’s security is always strengthened.
