As artificial intelligence (AI) becomes more advanced, it also creates new risks for cybersecurity. AI agents—programs that can make decisions and act on their own—are now being used in harmful ways. Some are launched by cybercriminals or even unhappy employees, while others may simply malfunction and cause damage. Cisco, a well-known technology company, has introduced new security solutions aimed at stopping these unpredictable AI agents before they can cause serious harm inside company networks.
The Growing Threat of AI in Cybersecurity
Traditional cybersecurity methods, such as firewalls and access controls, were originally designed to block viruses and unauthorized users. However, these defenses may not be strong enough to deal with intelligent AI agents that can move within networks, find weak spots, and spread quickly. Attackers now have the ability to launch AI-powered threats that are faster, more complex, and cheaper to operate. This creates a huge challenge for cybersecurity teams who are already stretched thin.
Cisco’s Zero Trust Approach
To address this, Cisco is focusing on a security method called Zero Trust. The basic idea behind Zero Trust is that no one and nothing inside a network should be automatically trusted. Every user, device, and application must be verified every time they try to access something new. Imagine a house where every room has its own lock, and just because you entered one room doesn't mean you can walk freely into the next. This layered security helps block the movement of malicious AI agents.
Cisco’s Universal Zero Trust Network Access (ZTNA) applies this approach across the entire network. It covers everything from employee devices to Internet of Things (IoT) gadgets that are often less secure. Cisco’s system also uses AI-powered insights to monitor activity and quickly detect anything unusual.
Building Stronger Defenses
Cisco is also introducing a Hybrid Mesh Firewall, which is not just a single device but a network-wide security system. It is designed to protect companies across different environments, whether their data is stored on-site or in the cloud.
To make identity checks easier and more reliable, Cisco is updating its Duo Identity and Access Management (IAM) service. This tool will help confirm that the right people and devices are accessing the right resources, with features like passwordless logins and location-based verification. Cisco has been improving this service since acquiring Duo Security in 2018.
New Firewalls for High-Speed Data
In addition to its Zero Trust solutions, Cisco is launching two new firewall models: the Secure Firewall 6100 Series and the Secure Firewall 200 Series. These firewalls are built for modern data centers that handle large amounts of information, especially those using AI. The 6100 series, for example, can process high-speed data traffic while taking up minimal physical space.
Cisco’s latest security solutions are designed to help organizations stay ahead in the fight against rapidly evolving AI-powered threats.
Over the years, zero trust has become a popular model adopted by organisations due to a growing need to ensure confidential information is kept safe, an aspect that organisations view as paramount in cybersecurity. Zero-trust is a vital security framework that is fundamentally not like the traditional security perimeter-based model. Instead of relying on a robust boundary, zero-trust grants access to its resources after the constant validation of any user and every device they use, regardless of an individual's position within an organisation or the number of years since one first employed with the company. This "never trust, always verify" policy only grants minimum access to someone, even a long-tenured employee, about what is needed to fulfil their tasks. Because information for cybersecurity is often log file data, zero trust principles can provide better safeguarding of this sensitive information.
Log Files: Why They Are Both Precious and Vulnerable
Log files contain information that reflects all the digital interplay happening on the network, hence can indicate any vulnerability on a system for remediation purposes. For example, it's a good source where one will trace how companies' activities go regarding their performance by analysing log files for anything out of place or anomalies in systems' behaviours for speedy intervention for security lapses. At the same time, however, these log files can expose organisations to vulnerabilities when wrong hands gain access because of possible theft of confidential data or the intention of hacking or modification. The log files have to be strictly controlled and limited only for authorization, because the misuse has to be avoided for maintaining the network secure.
Collecting and Storing Log Data Securely
Zero trust can best be implemented only if gathering and storing of log file collection and storage are sound. It ensures that the real-time data is collected in an environment that has a tamper-resistant place that prevents data from unauthorised modification. Of late, there has been OpenTelemetry, which is gaining popularity due to its potential in the multiple data sources and secure integration with many databases, mostly PostgreSQL.
Secure log storage applies blockchain technology. A decentralised, immutable structure like blockchain ensures logs cannot be altered and their records will remain transparent as well as tamper-proof. The reason blockchain technology works through multiple nodes rather than one central point makes it nearly impossible to stage a focused attack on the log data.
Imposing Least Privilege Access Control
Least privilege access would be one of the greatest principles of zero-trust security, which means that end-users would have only access to what is required to achieve their task. However, it can be challenging when balancing this principle with being efficient in log analysis; traditional access control methods-such as data masking or classification-frequently fall short and are not very practical. One promising solution to this problem is homomorphic encryption, which enables analysis of data in its encrypted state. Analysts can evaluate log files without ever directly seeing the unencrypted data, ensuring that security is maintained without impacting workflow.
Homomorphic encryption is beyond the level of the analyst. This means other critical stakeholders, such as administrators, have access to permissions but are not allowed to read actual data. This means logs are going to be secure at internal teams and thus there is a lesser chance of accidental exposure.
In-House AI for Threat Detection
Companies can further secure log data by putting in-house AI models which are run directly within their database and hence minimise external access. For instance, the company can use a private SLM AI that was trained specifically to analyse the logs. This ensures there is safe and accurate threat detection without having to share any logs with third-party services. The other advantage that an AI trained on relevant log data provides is less bias, as all operations depend on only relevant encrypted log data that can give an organisation precise and relevant insights.
Organisations can ensure maximum security while minimising exposure to potential cyber threats by applying a zero-trust approach through strict access controls and keeping data encrypted all through the analysis process.
Zero-Trust for Optimal Log Security
One of the effective log file intelligence approaches appears to be zero trust security-a security approach that uses the technologies of blockchain and homomorphic encryption to ensure the integrity and privacy of information in management. It means one locks up logs, and it is a source for valuable security insights, kept well protected against unauthorised access and modifications.
Even if an organisation does not adopt zero-trust completely for its systems, it should still ensure that the protection of the logs is considered a priority. By taking the essential aspects of zero-trust, such as having minimal permissions and secured storage, it can help organisations decrease their vulnerability to cyber attacks while protecting this critical source of data.
Zero-trust security, a framework built on the principle of "never trust, always verify," has transformed how organisations protect their data. However, as vital as the technical safeguards in this system are, there's an often-overlooked aspect: the human element.
The Overlooked Aspect of Zero Trust
While zero trust is frequently viewed through the lens of technology, focusing on tools and systems designed to secure networks, the reality is that these systems are operated by people. And people, as statistics show, are the most common source of security breaches. In fact, human error is involved in nearly 88% of data breaches. This stresses upon the relevance of addressing not just technological vulnerabilities but human ones as well.
Building Trust in a Zero-Trust World
To truly secure an organisation, it's essential to foster a culture of trust within the team. This means creating an environment where employees feel valued and responsible for their roles. Trust is not just about believing in your security systems; it’s about believing in the people who use them. A strong culture of trust can reduce the likelihood of risky behaviors that compromise security.
Research supports this approach, showing that companies with high levels of trust among employees see better engagement and lower absenteeism, leading to a more secure and productive environment.
The Importance of Integrity in Hiring
When expanding a team, hiring individuals with integrity is just as critical as hiring for technical skills. While a technically skilled employee is valuable, if they lack integrity, they could pose a pertaining security risk. Therefore, it’s important to assess candidates beyond their technical abilities, considering their values and past behaviours to ensure they align with the organisation's security and ethical standards.
Once a trustworthy team is in place, it’s important to empower them with a sense of ownership over their work. When employees feel responsible for the success of their company, they are less likely to engage in behaviours that could jeopardise its security. Encouraging initiative, accountability, and peer-to-peer support can create a secure environment where everyone is invested in the organisation's well-being.
Technology's Role in Zero Trust
While the human element is crucial, technology remains a vital part of zero-trust security. Tools that enforce access controls, monitor activities, and analyse data are essential in identifying and mitigating potential threats. However, these tools are only as effective as the people who use them. Skilled professionals are needed to interpret data, make informed decisions, and respond to threats promptly.
As cyber threats continue to evolve, so must security strategies. Organisations should invest in ongoing training for employees, stay updated on the latest security trends, and regularly review and update their security policies. This proactive approach helps in minimising risks and staying ahead of potential threats.
The Future of Zero Trust
The future of zero-trust security lies in balancing technology with a strong, people-centric approach. By investing in both advanced security tools and the people who operate them, organisations can build a robust defence against the incessant streak of threats. Ultimately, the effectiveness of zero-trust security depends on the trust placed in the people who are at the heart of every organisation’s security strategy.
The National Security Agency (NSA) has rolled out a comprehensive roadmap to strengthen internal network security. Stepping away from the traditional trust-all model, the focus is on embracing a cutting-edge zero-trust framework. This transformative approach assumes the presence of potential threats, urging organisations to implement stringent controls for resource access. In simpler terms, it's like upgrading your home security system from assuming everyone is trustworthy to actively verifying each visitor's credentials. The NSA's recent guidance delves into the nitty-gritty of fortifying the network and environment components, offering practical steps that even non-tech enthusiasts can understand. Let's break down these game-changing strategies and explore how they can revolutionise cybersecurity for everyone.
Unlike traditional models, the zero-trust architecture operates under the assumption that a threat could already exist, necessitating stringent controls for resource access both inside and outside the network perimeter. To gradually advance zero-trust maturity, the NSA emphasises addressing various components, or pillars, vulnerable to exploitation by threat actors.
The recent guidance from the NSA zeroes in on the network and environment component, encompassing hardware, software assets, non-person entities, and communication protocols. This involves intricate measures such as data flow mapping, macro and micro segmentation, and software-defined networking (SDN).
Data flow mapping starts with identifying where and how data is stored and processed. Advanced maturity is achieved when organisations possess a comprehensive inventory, ensuring visibility and mitigation of all potential routes for breaches. Macro segmentation involves creating distinct network areas for different departments, limiting lateral movement. For instance, an accounting department employee doesn't require access to the human resources segment, minimising the potential attack surface.
Micro segmentation takes security a step further by breaking down network management into smaller components, implementing strict access policies to restrict lateral data flows. According to the NSA, "micro segmentation involves isolating users, applications, or workflows into individual network segments to further reduce the attack surface and limit the impact should a breach occur."
To enhance control over micro segmentation, the NSA recommends employing SDN components, offering customizable security monitoring and alerting. SDN enables centralised control of packet routing, providing better network visibility and allowing the enforcement of policies across all segments.
The NSA categorises each of these components into four maturity levels, ranging from preparation to an advanced phase where extensive controls and management systems are in place, ensuring optimal visibility and growth of the network.
While constructing a zero-trust environment is a complex endeavour, the result is an enterprise architecture that can withstand, detect, and respond to potential threats exploiting weaknesses. The NSA initially introduced the zero-trust framework guide in February 2021, highlighting its principles and advantages. In April 2023, they released guidance on advancing zero-trust maturity in the user component.
By adopting these strategic measures, organisations can significantly enhance their resilience against cybersecurity threats. The principles of zero-trust not only provide a robust defence mechanism but also empower organisations with the tools to proactively address multiplying cyber challenges.