As information technology becomes more widely available and the digital transformation of enterprises accelerates, companies face multiple threats from both inside and outside. Whether it is hacker attacks, unintentional negligence on the part of employees, or malicious behaviour by internal personnel, the consequences of data disclosure are incalculable.
Key data disclosure threats faced by enterprises
In the network environment of modern enterprises, data disclosure can be obtained through a variety of means, including mainly:
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External hacking
External hackers have invaded the business network and stole sensitive data through cyber-blank, fishing mail, malicious software, etc. While businesses have deployed basic protection tools such as firewalls, intrusion detection systems, hacking methods are becoming increasingly complex, and traditional security measures may not be able to fully protect against these threats.
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Malicious acts by internal personnel
Business employees may, because of abuse of authority or personal motivation, access, disclose or sell sensitive business data without authorization. In particular, when it comes to separating staff or unauthorized third-party collaborators, internal threats are often more hidden and difficult to prevent than external attacks.
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Staff negligence and improper use
For example, the use of weak passwords, access to sensitive information in public places and storage of sensitive data in unsafe locations can lead to data disclosure.
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New risks from teleworking and BYOD
With the spread of teleworking and BYOD (self-contained equipment) policies, more and more employees in companies are using personal devices to access their networks. These devices are less secure and can easily be a gateway to hacker attacks.
Network access control system: first line of defense to prevent data disclosure
The network access control system (NAC) can effectively reduce the risk of data disclosure by means of rigorous verification and real-time monitoring of network access equipment, user identification, access behaviour, etc. The core functions of NAC systems include equipment authentication, identification, access control, health check, behavioral surveillance, etc., which will be described below.
1. Equipment certification and compliance inspections: ensuring the security of each access device
The NAC system, through equipment certification and compliance checks, ensures that each facility connected to the enterprise network meets security requirements. For example, the NAC system can verify whether the equipment has been installed with an updated operating system patch, a firewall, a virus-proof software etc. If the equipment is not certified, it automatically prevents access to the network and avoids unsafe equipment becoming a channel for data disclosure.
The NAC system is particularly important for enterprises in implementing their BYOD policy. It can avoid the risk of personal equipment being leaked by testing the health status of its own equipment and ensuring that personal devices such as mobile phones, tablets and so on are used by employees to meet enterprise safety standards.
2. Strict identification and access control: limiting access to sensitive data
An important reason for data disclosure is that sensitive information is not accessed by unauthorized persons. The NAC system allows strict access control to different data according to the identity, role and authority of the employee.
NAC also supports multi-factor authentication (MFA), which further ensures that only certified users have access to sensitive data by adding a layer of identification. Even if an employee’s account password is leaked, hackers are still unable to obtain access through single identification, thereby effectively reducing the risk of data disclosure.
3. Dynamic access control and real-time monitoring: real-time containment of anomalies
NAC systems not only enable the identification of equipment and users, but also adapt access rights to dynamically present-time situations. For example, when an employee has access to sensitive data during off-duty hours or through non-used devices, NAC systems can automatically adjust access rights to limit their access to data.
In addition, NAC systems have real-time monitoring and behavioural analysis capabilities that detect and deter any anomalies. For example, they can identify unusual behaviour by a staff member who has access to a large number of sensitive documents at short notice, provide timely warning and response measures to avoid potential data leaks or thefts.
4. Access logs and audits: evidence for data disclosure tracking
The NAC system is able to generate detailed access logs that record every device connected, each user’s access behaviour, including information on the type of equipment, access times, resources accessed. Through these logs, enterprises can trace data leaks to specific processes, analyse the causes of the leakage, and repair gaps in a timely manner to avoid recurrence of similar incidents.
The NAC system of NatShell provides efficient audit and reporting functions to help enterprises quickly locate the source of the problem after a security incident, ensuring transparency and traceability of information.
NATSHEL_BRAD Web Access Control System: Secured Enterprise Data
NATHHEL_BRANDThe NAC provides a strong data protection capability for companies. As an enterprise with 20 years of technological accumulation, NATSHEL_BRAND has a deep technological build-up in the field of cybersecurity. Through NAC NETSHELL_BRAND, enterprises are able to achieve full certification of access devices, user fine-tuning rights management, real-time monitoring of network behaviour and comprehensive audit of data access.
NAC systems for NATSHEL_BRAND not only help businesses prevent data from being leaked, but also ensure the overall safety of their networks in a complex web environment. Whether it addresses internal and external threats or ensures compliance, NATSHEL_BRAND solutions can be fully supported.
The risk of data leakage threatens the safety of businesses at all times, especially today, when digitalization is accelerating, sensitive data from enterprises are more likely to be targeted by their attackers. As an effective security protection tool, the Network Access Control System (NAC) can help companies prevent data disclosure through various means such as equipment certification, access control, and real-time monitoring.
NATHHEL_BRANDWith 20 years of industry experience, an efficient and reliable NAC system is available to help enterprises achieve comprehensive data protection in a complex network environment. Through the NAC solution of NatShell, businesses can not only prevent data leakage but also improve overall cybersecurity and ensure information security and business continuity.