Why is it important to have a NAC solution?
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With organizations now having to account for exponential growth of mobile devices accessing their networks and the security risks they bring, it is critical to have the tools that provide the visibility, access control, and compliance capabilities that are required to strengthen your network security infrastructure.
A NAC system can deny network access to noncompliant devices, place them in a quarantined area, or give them only restricted access to computing resources, thus keeping insecure nodes from infecting the network.
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- A more secure approach would limit or even eliminate the need for a root account, and shift the power from the user accounts to the owner of the system. This is MAC’s approach. MAC makes the enforcement of security policies mandatory instead of discretionary, as you might imagine from the name Mandatory Access Control.
What are the general capabilities of a NAC solution?
NAC solutions help organizations control access to their networks through the following capabilities:
- Policy lifecycle management: Enforces policies for all operating scenarios without requiring separate products or additional modules.
- Profiling and visibility: Recognizes and profiles users and their devices before malicious code can cause damage.
- Guest networking access: Manage guests through a customizable, self-service portal that includes guest registration, guest authentication, guest sponsoring, and a guest management portal.
- Security posture check: Evaluates security-policy compliance by user type, device type, and operating system.
- Incidence response: Mitigates network threats by enforcing security policies that block, isolate, and repair noncompliant machines without administrator attention.
- Bidirectional integration: Integrate with other security and network solutions through the open/RESTful API.
The benefits of access control are pretty obvious when you think about it. Having a building-wide system can protect your employees, patrons, information, equipment and other assets without question. Before we discuss the types of access control, let’s talk a little bit more about the benefits and how access control works.
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The Three Types of Access Control Systems
In brief, access control is used to identify an individual who does a specific job, authenticate them, and then proceed to give that individual only the key to the door or workstation that they need access to and nothing more. Access control systems come in three variations: Discretionary Access Control (DAC), Mandatory Access Control (MAC), and Role-Based Access Control (RBAC).
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1. Discretionary Access Control (DAC)
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Discretionary Access Control is a type of access control system that holds the business owner responsible for deciding which people are allowed in a specific location, physically or digitally.
DAC is the least restrictive compared to the other systems, as it essentially allows an individual complete control over any objects they own, as well as the programs associated with those objects.
The drawback to Discretionary Access Control is the fact that it gives the end-user complete control to set security level settings for other users and the permissions given to the end-user are inherited into other programs they use which could potentially lead to malware being executed without the end-user being aware of it.
2. Mandatory Access Control (MAC)
Mandatory Access Control is more commonly utilized in organizations that require an elevated emphasis on the confidentiality and classification of data (ie. military institutions). MAC doesn’t permit owners to have a say in the entities having access in a unit or facility, instead, only the owner and custodian have the management of the access controls. MAC will typically classify all end users and provide them with labels that permit them to gain access through security with established security guidelines.
3. Role-Based Access Control (RBAC)
Also known as Rule-Based Access Control, RBAC is the most demanded in regard to access control systems. Not only is it in high demand among households, RBAC has also become highly sought-after in the business world.
In RBAC systems, access is assigned by the system administrator and is stringently based on the subject’s role within the household or organization and most privileges are based on the limitations defined by their job responsibilities. So, rather than assigning an individual as a security manager, the security manager position already has access control permissions assigned to it.
RBAC makes life much easier because rather than assigning multiple individuals particular access, the system administrator only has to assign access to specific job titles.
Benefits of Access Control
1. Knowing Who’s Coming and Going at All Times
Many businesses have equipment and physical assets that are valuable on-site. An access control system keeps track of who’s coming and going to ensure that someone hasn’t snuck into the building.
If a business is large with a lot of employees, it can be difficult for everyone to know who is an employee and who is not. An Access Control System helps prevent strangers from slipping in undetected.
2. Keep Track of Employees
If a business has multiple shifts with large groups of employees coming and going at odd hours, an Access Control System can help organize the chaos and inform you if an employee is in the building when they shouldn’t be. It can also help you keep track of who has shown up for work and who hasn’t.
3. Secure Sensitive Documents and Data
Many businesses have documents or data that should not be accessible to everyone in the company. An access control system allows a business to limit the access to certain areas that hold hardware or software that this information is saved on.
4. Reduce Theft and Accidents
An Access Control System allows a business to give only approved or specially trained employees access to areas that may hold valuable or dangerous equipment.
5. Multi-Property Protection
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An integrated access control system will allow a business to grant access to employees who need to enter multiple or all buildings.
6. No More Worrying About Keys
When an employee quits and fails to return their keys, the business is stuck with the expense of making new keys and possibly even changing the locks. The same would apply when an employee loses his or her company keys. If the employee left on bad terms, this also removes the chance that they will try to re-enter the building and do damage.
With an access aontrol system, the business can just remove the employee’s access from the system digitally.
How Access Control Works
- Access control readers give access to the building based on established credentials. Things like a key card, key fob, or biometrics like fingerprints are all considered established credentials.
- Door readers are connected to a network. Every person who needs access has a code tied to their credential and the system recognizes that they are authorized to be in the building.
- Software tracks who enters and exits the building and has the ability to alert security supervisors, business owners, etc. when someone enters the building after hours or there is a break-in.
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For a deeper dive into how the components of the system works, click here.
Your Security Needs and Access Control
When it comes to protecting your home or business, as well as the building’s occupants, access control is one of the best ways for you to achieve peace of mind. But, access control is much more than just allowing people to access your building, access control also helps you effectively protect your data from various types of intruders and it is up to your organization’s access control policy to address which method works best for your needs.
There are a number of access control systems you have to choose from to use in your residence or business facility; some outperform others.
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Outlined below is an overview of the three basic types of access control systems that are available to your company so you can see which are best suited for your day-to-day operations.
Choosing the Best Access Control System for Your Organization
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As you can see, when it comes to choosing the type of access control system that is most suitable for your organization, there are a number of factors involved. Some of those factors include the nature of your business, security procedures within the organization, and the number of users on the system.
Places of business with small or basic applications will probably find Discretionary Access Control to be less complicated and better utilized. If, however, you have highly confidential or sensitive information on your business platform, a Mandatory Access or Role-Based Access Control system are two options you may want to consider.