In April, business intelligence company Sisense fell victim to a critical security breach that exposed all vulnerability in managing non-human identities (NHIs). The hackers accessed the company's GitLab repository that contained hardcoded SSH keys, API credentials, and access tokens. Indeed, this really opened the book on why NHIs are a must and how indispensable they have become in modern digital ecosystems.
Unlike human users, NHIs such as service accounts, cloud instances, APIs, and IoT manage data flow and automate processes. Therefore, in the majority of enterprise networks, with NHIs now far outscaling human users, their security is crucial to prevent cyberattacks and ensure business continuity.
The Threat of Non-Human Identities
With thousands or even millions of NHIs in use within an organisation, no wonder cybercrooks are turning their attention to these. Typically, digital identities are less comprehensively understood and protected, so that easily becomes an easy target for them. In fact, data breaches involving NHIs have already become more widespread, especially as companies increase their usage of cloud infrastructures and automation.
Healthcare and finance are basically soft targets because these industries have strict regulations on compliance. Getting found in violation of standards such as the Health Insurance Portability and Accountability Act (HIPAA) or the Payment Card Industry Data Security Standard (PCI DSS) could come in the form of a fine, reputational damage, and a loss of customer trust.
Why Secure NHIs?
With the complexity of digital ecosystems constantly growing, the security of NHIs becomes all the more important. Companies are drifting toward a "zero-trust" security model, where no user--neither human nor non-human-is trusted by default. Every access request needs to be verified. And especially, this concept has been very effective in decentralised networks that come with large numbers of NHIs.
Locking down NHIs lets the organisations control sensitive data, reduce unauthorised access, and comply with regulation. In the case of Sisense, when management of NHIs is poor, they very soon become a gateway for the cybercriminals.
Best Practices in Managing NHI
To ensure the security of non-human identity, these best practices have to be adopted by an organisation:
1. Continuous Discovery and Inventory
Automated processes should be in place so that there is always a live inventory of all the NHI across the network. This inventory captures proper details of the owner, permissions, usage patterns, and related risks associated with that NHI. Control and monitoring over these digital identities is enhanced through this live catalog.
2. Risk-Based Approach
Not all NHIs are the same, however. Some have access to highly sensitive information, while others simply get to perform routine tasks. Companies should have a risk-scoring system that analyses what the NHI has access to, what it accesses in terms of sensitivity, and the effect if broken into.
3. Incident Response Action Plan
A percentage of security will then be allocated based on those with the highest scores. Organisations should have a structured incident response plan aligned with NHIs. They should also have pre-defined playbooks on the breach related to non-human identities. These playbooks should outline the phases involved in the incident containment, mitigation, and resolution process, as well as the communication protocols with all stakeholders.
4. NHI Education Program
A good education program limits security risks associated with NHI. Developers should be trained on coding secure practices, including the dangers of hardcoded credentials, and operations teams on proper rotation and monitoring NHIs. Regular training ensures that all employees are aware of best practices.
5. Automated Lifecycle Management
The NHIs will also get instantiated, updated, and retired automatically. Thus, security policies will be enforced for all the identity lifecycle stages. This will eradicate human errors in the form of unused or misconfigured NHIs with possible exploits by attackers.
6. Non-Human Identity Detection and Response (NHIDR)
The NHIDR tools set baseline behaviour patterns for NHIs and detect the anomaly that could indicate a breach. Organisations can monitor the activities of NHIs with these tools and respond quickly to suspicious behaviour, thereby preventing more breaches.
7. Change Approval Workflow
In most cases, change approval workflow should be embedded before changes to NHIs like the change of permissions or transfers between systems are affected. The security and IT teams must assess and approve the process so that there are no unnecessary risks developed.
8. Exposure Monitoring and Rapid Response
Organisations must expose NHIs, which means they must identify and resolve the vulnerabilities quickly. Automated monitoring solutions can find exposed credentials or compromised APIs, set off alerts, and initiate incident response procedures before a potentially malicious actor could act.
The Business Case for NHI Management
Investments in the proper management of NHI can produce large, long-term benefits. Companies can prevent data breaches that cost on average $4.45 million per incident and keep money at the bottom line. Simplified NHI process also helps save precious IT resources, thereby redirecting security teams' efforts toward strategic initiatives.
For industries that require high levels of compliance, such as health and finance, much of the NHI management investment often pays for itself through better regulatory compliance. Organisations can innovate more safely, knowing their digital identities are safe, through a good NHI management system.
As businesses start relying more and more on automation and the cloud, it will be based on the solid and well-rounded management of NHI. A good approach toward NHI management would largely prevent security breaches and ensure industry compliance. Such a posture will not only save the data but help the organisation position itself as a long-term winner in the fast-changing digital world.
