In today’s digital world, companies face a growing threat from cyber attacks. The number of possible entry points into their networks is getting bigger. A recent study shows the global network security market will hit $36.89 billion by 2027, growing at a 10.8% annual rate from 2020 to 20271. This highlights the need for strong security measures to protect important systems and data from cyber threats.
This article looks at ways to keep enterprise networks safe. It talks about the challenges of protecting networks with more entry points, old systems with weak spots, and the need to limit how threats can spread. By using these strategies, companies can make their networks safer and keep their critical operations running smoothly.
Key Takeaways
- Understand the complex, distributed nature of enterprise networks and the growing attack surface
- Explore strategies for network segmentation and segregation to limit lateral movement and contain breaches
- Learn how to harden network infrastructure devices and implement robust access controls
- Discover the importance of visualizing and modeling attack surfaces to proactively mitigate risks
- Gain insights into maintaining control over network endpoints and implementing comprehensive security measures
Understanding Enterprise Network Security Challenges
Today, keeping enterprise networks safe is very complex. As companies grow and use more systems, they face more security issues2.
Expanding Attack Surface in Distributed Networks
More companies are using networks spread across many places. This makes it easier for hackers to get in. They can now find many ways to break into a network2.
Vulnerabilities in Legacy and Hybrid Systems
Old and outdated systems in networks make security harder. These systems often don’t have the right security features. When they’re mixed with newer systems, they can be a big risk2.
It’s important for companies to tackle these security problems. By understanding the changing security needs, they can protect their data and keep running smoothly2.
“Every eleven seconds, at least one organization falls victim to a ransomware assault, highlighting the increasing targeting of enterprise networks by hackers.”2
Segmenting and Segregating Networks for Security
Using segmentation and segregation is key to boosting security in companies. It stops a security issue from spreading and limits what an intruder can see. These methods split up the network into parts to control data flow.
Physical Separation of Sensitive Information
Routers can be used to split the network physically, setting clear lines between zones. This keeps important systems, like servers with sensitive data, away from the rest3. By giving access only when needed, companies can stop threats from moving laterally and reduce the damage from a breach.
Virtual Separation of Sensitive Information
Network segmentation can also be done virtually, using tools like VLANs, VRFs, and VPNs4. These tech solutions create logical walls around network parts, keeping sensitive info safe even if it moves through the same wires5. This method is flexible and can grow with the company, making it a great addition to physical methods.
It’s important to mix physical and virtual network segmentation for full security4. This mix helps stop security problems from spreading and keeps important assets safe3.
“Network segmentation is a fundamental security strategy that helps organizations protect their most sensitive data and critical systems from potential threats.”
| Types of Network Segmentation | Benefits |
|---|---|
| Physical Segmentation (using hardware) |
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| Virtual Segmentation (using software-based tools) |
|
By using both physical and virtual network segmentation methods, companies can boost their security. This helps control the spread of security issues, keeps sensitive data safe, and protects critical systems435.
Limiting Lateral Communications in the Network
Uncontrolled peer-to-peer communications in a network can let an intruder spread their access widely. This makes it hard for defenders to stop the threat. Restricting lateral communications is key to stopping an attacker’s movement and preventing backdoors6.
Network segmentation is vital for controlling lateral movement. It breaks the network into smaller, isolated parts. This makes it harder for attackers to move around6. Adding Multi-Factor Authentication (MFA) also helps by making it tough for attackers to get in, even with a password6.
Keeping software and systems updated can also limit lateral movement. It fixes vulnerabilities that attackers might use6. Watching network traffic and system behavior closely is key to spotting and acting on threats fast6.
Using AI and machine learning tools can spot unusual patterns that might mean lateral movement. This lets you act early6. Having a good incident response plan is key to handling lateral movement quickly6.
Regular security checks and training staff can help stop lateral movement. This ensures everyone knows the risks and how to keep the network safe6. Making sure user credentials are strong and using unique passwords is also crucial6.
Network segmentation and microsegmentation help isolate workloads to stop lateral movement. The author notes that network segmentation is often missing in networks they see7. But, they find that existing hardware is often enough for segmentation, showing companies might already have what they need7.
This strategy is seen as a much easier way to implement network segmentation, showing interest in simple solutions for better network security7. Workstations usually don’t need to talk to each other directly, except for IT Admins. This shows a pattern in how networks communicate7.
The author explains how to set up different firewall profiles (Domain, Private, Public). This shows how important it is to get these settings right for security7. They also suggest that minimal unsolicited inbound connections are needed for workstations, pointing to a trend of limiting incoming traffic7.
Advice to test configurations in a lab before putting them into production highlights the importance of careful testing in network security7.
Hardening Network Infrastructure Devices
Securing devices like routers, firewalls, and switches is key to making your network safer. It’s important to turn off remote access without encryption, stop services you don’t need, and change default settings. Also, use strong passwords and keep your devices updated with the latest security patches8. This helps protect your network from hackers and keeps them out.
Disabling Unnecessary Services and Protocols
Device makers often turn off services by default. But, you should check and turn off any services you don’t need8. Don’t use old protocols like Echo, Chargen, and others unless you have to. Also, turn off services like FTP, Telnet, and HTTP Server if you don’t use them8.
Using SSHv3 or TLS for secure connections to your devices is a good idea8.
Implementing Robust Password Policies
Strong passwords are a must for keeping your devices safe. Use two-factor authentication with things like hardware tokens and passwords. Also, manage your network separately from regular traffic and limit who can connect at the same time8.
Using strong encryption for passwords and controlling access by IP addresses can also help8.
Following these steps can make your network much safer. It helps protect against attacks and keeps your data secure910.
Securing Access to Network Infrastructure
It’s key to limit who can access network devices. If someone with the wrong access gets in, they can move deeper into the network. This could let them take over the whole system11. Using strong checks like multi-factor authentication (MFA) helps stop unauthorized access and keeps credentials safe11.
Multi-Factor Authentication for Administrative Access
Keeping an eye on who gets into network admin areas is very important. Adding multi-factor authentication (MFA) gives an extra shield against unwanted access11. This means users must show more than just a password, like a code on their phone, making it harder for hackers to get in11.
Managing Privileged Access and Credentials
It’s crucial to keep a tight grip on who has special access and their passwords. Using strong AAA services helps manage these accounts safely11. By only giving access when needed and changing passwords often, we can lower the chance of hackers getting in and spreading through the network11.
Protecting network access is a big part of keeping a network safe. By using MFA, controlling special access, and using AAA services, we can make our network much safer11.
Visualizing and Modeling Attack Surfaces
Effective threat detection and prevention go beyond just scanning and monitoring systems. Attack surface modeling, simulation, and patching give a full view of where attackers could strike. This helps security teams understand and lower the risks in complex networks12.
Seeing the attack surface is key to finding and fixing weak spots. Security experts and testers look at designs and code to spot where attackers could get in12.
With microservices and cloud apps, the attack surface gets more complex. Vulnerability visualization tools help teams see through this mess. They find patterns and trends that could signal threats1213.
Using knowledge graphs and data security tools gives real-time views of cybersecurity risks. This helps teams detect and respond to threats better13.
The first attack surface model might be basic, but it’s a start. It helps teams understand and improve their system’s weak spots. The relative attack surface quotient (RSQ) measures the attack surface size and changes over time, guiding decisions12.
As apps change and new versions come out, the attack surface grows. Teams must keep an eye on it and adjust. They need to check how changes affect the attack surface and if defenses work well12.
By visualizing and modeling the attack surface, teams get a deeper look at their networks. They can spot vulnerabilities and plan to reduce cyber risks1213.
Maintaining Control Over Network Endpoints
In today’s complex networks, keeping endpoints secure is key for strong security14. The IDC found 70% of breaches started on endpoints in 201914. New file-less malware made up 50% of malware attacks that year14. With traditional security failing, focusing on endpoint security is vital to fight risks14.
Good endpoint security means using many tools, like data encryption and monitoring for insider threats14. With more people working from home, securing endpoints is more critical than ever14. Cloud solutions offer quick threat response and other benefits for a monthly fee14.
Encrypting data is key to protect it, making it unreadable without the right key14. Email gateways block viruses and filter content, keeping networks safe14. Getting a SOC 2 report shows enough endpoint security, avoiding fines and keeping a good reputation14.
Endpoints are now the frontline of security, needing strong protection from all organizations14. By securing endpoints, companies can lower the risk of unauthorized access and stop malware spread14.
Securing Network Access to Endpoints
Securing access to endpoints is also crucial15. Zero trust access is gaining ground with more remote work, with experts working together for a secure network15. Network access control (NAC) checks all devices on the network, and app security fights off attacks at the application level15.
Segmenting the network helps protect it by isolating different areas15. Security tools watch and sometimes block data packets, stopping attacks automatically15. VPNs encrypt data and hide users’ locations, keeping them safe from breaches and attacks15.
The Evolving Importance of Network Access Control
Network access control has become more important, with 44% of people in a 2020 survey saying it’s more crucial after the pandemic16. Gartner now includes it in its forecasts, tracking vendors’ shares16. The 2020 Zero Trust Progress Report showed 72% of respondents see Zero Trust as a key security feature16.
Devices like computers and printers are key entry points for the network16. Access control checks credentials and can use more advanced checks too16. Quarantine is a tool that puts suspicious traffic in a safe space16.
Some companies use a guest network to keep third-party traffic separate16. Managing access control can be done through a dashboard, offering visibility and alerts16.
“Enterprise network security must prioritize endpoint protection to mitigate the growing threat of sophisticated attacks originating from the edge of the network.”
enterprise network security Strategies
For strong network security, a multi-layered approach is key. Focus on segmenting the network and analyzing the attack surface17. By making the network simpler and fewer points to attack, you can slow down hackers and limit damage17.
Network Segmentation and Separation
Strong network segmentation is vital for top-level security. It means separating sensitive data and key systems from the rest of the network. This limits how far an attacker can go and reduces their targets17. Tools like Triple Data Encryption Standard (3DES), Advantage Encryption Standard (AES), and Rivet-Shamir-Adleman (RSA) help keep data safe17. VeraCrypt, Trend Micro Endpoint Encryption, and AxCrypt Premium are some top encryption tools17.
Prioritizing Attack Surface Analytics
Looking closely at the attack surface is also key for better network security17. By deeply analyzing network settings, risks, and traffic, you can find ways to shrink the attack surface and boost security17. Tools like firewall management, VPNs, and Intrusion Detection and Prevention Systems (IDPS) help a lot18.
By matching security strategies with the unique needs of big networks, companies can fight risks better, slow down hackers, and protect their important systems19.
Conclusion
As the digital world changes, keeping networks safe is key for all kinds of businesses. With more ways for hackers to get in and the risk of complex cyber attacks, it’s tough to keep things secure20.
But, there are steps to take to stay safe. Things like segmenting the network, making devices more secure, and controlling how information moves can help a lot21.
By fixing security problems and changing how networks work, companies can feel more secure. With help from IT experts, they can keep up with security needs and stay ahead2022.
FAQ
What are the key challenges in securing enterprise networks?
Securing enterprise networks is tough due to their growing size and old systems’ weaknesses. Hackers find it easy to breach these networks, making them vulnerable.
How can network segmentation and segregation enhance enterprise security?
Segmenting and segregating networks helps stop a security breach from spreading. It limits an intruder’s access to sensitive data by creating barriers between network parts.
Why is limiting lateral communications within the network important?
Limiting lateral movement stops attackers from spreading across the network. Without controls, an intruder can easily move to different systems, creating lasting access.
What are the key recommendations for hardening network infrastructure devices?
To secure devices, turn off unencrypted remote access, unused services, and SNMP strings. Use strong passwords and the latest secure operating systems.
How can organizations secure access to network infrastructure?
Use multi-factor authentication for admin access. Implement AAA services and manage access with the least privilege rule to lower the risk of unauthorized access and stolen credentials.
What is the importance of visualizing and modeling the attack surface?
Modeling and simulating attacks gives a clear view of possible entry points and attack paths. This helps security teams understand and tackle the risks of complex networks.
How can organizations maintain control over network endpoints?
Keep a close eye on network endpoints and set up a visual security perimeter. Use automated protocols to reduce exposure and stop unauthorized access and malicious activity.
Source Links
- Network Security Strategies: Protect your network and enterprise against advanced cybersecurity attacks and threats (Paperback)
- What is Enterprise Network Security? – zenarmor.com
- What Is Network Segmentation and Why Does It Matter?
- Network Segmentation vs Segregation: Balancing Security and Accessibility | Tufin
- 7 Network Segmentation Best Practices to Level-up | StrongDM
- Preventing Lateral Movement 101 • TrueFort
- Preventing Lateral Movement Using Network Access Groups
- Guide to Network Security and Hardening
- Your Guide to Network Hardening Standards | RSI Security
- Securing Network Infrastructure Devices | CISA
- Attack Surface Analysis – OWASP Cheat Sheet Series
- Visualize the Threat: The Power of Visualization in Cybersecurity
- The Importance of Endpoint Security
- What Is Network Security? How to Keep Networks Safe
- What Is Network Access Control? Definition, Key Components, and Best Practices – Spiceworks
- How to Secure a Network: 9 Key Actions to Secure Your Data
- What is Network Security? A Comprehensive Overview
- What is Network Security? The Different Types of Protections – Check Point Software
- Conclusion: 12 Ways To Protect Your Business From A Cyber Security Attack
- Is Network Security Still Relevant in a Zero Trust World? – Telos Corporation
- Why Network Security is Important? | Institute of Data
