News | 26 Feb 2025

Top 7 Items to Add to a Network to Help Minimize a Cyber Attack

By Neil McGarry, Director of IT

Enhancing Cybersecurity in a Digital Age

Digital threats are becoming increasingly sophisticated, and safeguarding networks against cyber-attacks has never been more crucial. Organizations must stay ahead of malicious actors by implementing robust security measures. Below are seven items you should be aware of to help minimize cyber attacks.

1. Firewalls

Firewalls are your first line of defense against cyber threats. They monitor and control incoming and outgoing network traffic based on predetermined security rules. Firewalls can be hardware-based, software-based, or a combination of both. They help to block unauthorized access while permitting legitimate communication. By filtering traffic and preventing malicious data packets from entering the network, firewalls play a critical role in protecting sensitive information and maintaining network integrity.

Types of Firewalls

      • Packet-Filtering Firewalls: Examine packets and allow or block them based on the source and destination addresses, ports, or protocols. These firewalls are simple and operate at a low network stack level, making them fast and efficient for basic filtering tasks.
      • Next-Generation Firewalls (NGFW): Offer advanced features such as application awareness, intrusion prevention, and cloud-delivered threat intelligence. NGFWs provide a deeper inspection of network traffic, identifying and blocking sophisticated threats that traditional firewalls might miss.

2. Intrusion Detection and Prevention Systems (IDPS)

Intrusion Detection and Prevention Systems identify and thwart potential threats before they can cause damage. An IDPS monitors network traffic for suspicious activity and can automatically take action to prevent an attack. It combines the functionalities of intrusion detection systems (IDS) and intrusion prevention systems (IPS), offering both passive detection and active defense capabilities.

Benefits of IDPS

      • Real-Time Threat Detection: Identifies malicious activities as they happen, allowing for swift response. This immediate detection helps to mitigate damage and prevent the spread of threats within the network.
      • Automated Response: This can block or mitigate threats automatically, reducing the window of vulnerability. IDPS systems can neutralize threats more quickly and efficiently than manual interventions by automating responses.
      • Comprehensive Coverage: Protects against various threats, including malware, DDoS attacks, and unauthorized access attempts. This broad protection ensures that various attack vectors are monitored and addressed.

3. Endpoint Security Solutions

Endpoints like laptops, desktops, and mobile devices are often the weakest links in a network’s security. Implementing endpoint security solutions ensures that these devices are protected from threats. Endpoint security encompasses various tools and technologies to secure individual devices.

Key Components of Endpoint Security

      • Antivirus and Anti-Malware Software: Detects and removes malicious software from devices. Regular updates and scans ensure that new threats are identified and neutralized.
      • Endpoint Detection and Response (EDR): Provides continuous monitoring and response to advanced threats. EDR solutions offer deep visibility into endpoint activities, enabling rapid detection and remediation of suspicious behavior.
      • Data Loss Prevention (DLP): Prevents sensitive data from being exfiltrated from endpoints. DLP solutions monitor and control data transfers, ensuring that sensitive information does not leave the network unauthorized.
      • Device Encryption encrypts data on devices to protect it from unauthorized access in case of theft or loss. Encryption ensures that even if a device is compromised, the data remains secure and unreadable to unauthorized users.

4. Multi-Factor Authentication (MFA)

Multi-factor authentication adds a layer of security by requiring users to verify their identity using multiple methods. This typically involves something the user knows (password), something the user has (smartphone or hardware token), and something the user is (biometric verification). MFA significantly reduces the risk of unauthorized access even if passwords are compromised.

Advantages of MFA

      • Enhanced Security: Provides stronger authentication by combining multiple factors. This layered approach makes it more difficult for attackers to access accounts.
      • Reduced Risk of Credential Theft, thwarts phishing attacks and password guessing attempts. MFA ensures that stolen credentials alone are not sufficient to breach an account.
      • Easy to Set Up and Configure: Most MFA solutions are user-friendly and can be quickly enabled in minutes, immediately increasing security without complicated installations or disruptions to your daily workflow.

5. Security Information and Event Management (SIEM) Systems

SIEM systems are critical for comprehensive network security monitoring and management. They collect and analyze data from various sources within the network to identify and respond to potential security incidents. SIEM systems provide real-time visibility into network activities and help detect, analyze, and mitigate threats.

Features of SIEM Systems

      • Single, Clear View: All security information is organized in one easy-to-understand place.
      • Instant Alerts: Quickly identifies unusual activity and instantly notifies your security team.
      • Quick Response: Helps your team swiftly handle any security events, reducing potential harm.
      • Easy Reporting: Simplifies the process of meeting security regulations by automatically generating clear, understandable compliance reports.

6. Data Backup Following the 3-2-1 Rule

Data backup is an essential aspect of cybersecurity. The 3-2-1 Rule is a widely recognized best practice for data backup that helps ensure data integrity and availability. This Rule suggests having three copies of your data, two of which are stored on different media and one off-site. Additionally, incorporating immutable storage can provide extra protection against cyber attacks and accidental deletion.

Implementing the 3-2-1 Rule with Immutable Storage

Immutable Storage: Immutable storage refers to data storage solutions where the data, once written, cannot be altered or deleted. This feature is particularly useful for backups, ensuring the backup data remains unchanged and protected from ransomware attacks or accidental deletions.

      • Three Copies of Data: Maintain one primary and two backup copies of your data. This redundancy ensures that the other copies are available for recovery if one copy is lost or corrupted.
      • Two Different Storage Media: Store backups on at least two different media types, such as an external hard drive and cloud storage. Using diverse media types reduces the risk of data loss due to hardware failure or other issues affecting a single media type.
      • One Off-Site Backup: Keep one backup copy off-site, such as in a cloud storage service or a remote physical location. This protects your data against local disasters, such as fires, floods, or theft that could compromise on-site backups.
      • Immutable Storage: Use immutable storage for backups, which prevents data from being altered or deleted for a specified period. Immutable storage ensures that backup data remains unchanged and protected from ransomware attacks and accidental deletions.

7. End User Cyber Training

One of the most critical aspects of network security is ensuring that all end users are well-trained in cybersecurity practices. Human error is often the weakest link in the security chain, and educating users can significantly reduce the risk of cyber attacks. Regular training sessions help users recognize threats and adopt best practices to protect sensitive information.

Key Components of Cyber Training

      • Phishing Awareness: Training users to identify and avoid phishing scams, which can compromise sensitive information or provide unauthorized access to the network.
      • Password Management: Educating users on creating strong, unique passwords and regularly updating them. Emphasizing the use of password managers to store and manage passwords securely.
      • Safe Internet Practices: Teaching users about the risks of downloading files from unknown sources, visiting suspicious websites, and sharing personal information online.
      • Incident Reporting: Encouraging users to promptly report suspicious activity or potential security breaches to the IT department. Quick reporting can help contain and mitigate the impact of a security incident.
      • Regular Training: Keeping users informed about the latest cybersecurity threats and best practices through interactive computer based training, newsletters, and workshops.

 

Organizations can significantly enhance their cybersecurity posture by incorporating these comprehensive measures—firewalls, IDPS, endpoint security solutions, MFA, SIEM systems, data backup following the 3-2-1 Rule with immutable storage, and end user cyber training. These tools and practices work together to provide a robust defense against cyber attacks, ensuring the protection of sensitive data and the integrity of the network. As cyber threats evolve, organizations must stay proactive and vigilant in their security efforts. Investing in these security measures protects the network. It builds trust with clients and stakeholders, demonstrating a commitment to maintaining a secure and resilient digital environment.