It is very obvious why network security becomes the main point of consideration both for a company and a citizen in this contemporary digital era: increasing cyber threats in all directions have demanded protection for confidential data that no one else wants to steal more than today. It is applicable for businesspersons, an IT specialist, and a citizen looking to keep the private data in safety as being protected by appropriate network security.
This article, therefore, shall describe the step-by-step approach toward network security, indicating some of the main practices that secure the network for its safe use.
Step 1: Network Security Risks Understanding
This is a requirement to know the kind of threats his or her network is susceptible to, before implementing security controls. Cyber thieves have several types of unauthorized access, data loss, and service disruption. Among the most prevalent threats of network security are
Malware- Viruses, ransomware, spyware, which devastates the system.
Phishing Attack – sneaky means of stealing one’s secret information using a spoofed email or text message.
DoS Attack- It is one kind of cyber attack which floods a network. The network then becomes unable to offer their services to the users.
MITM Attack- One intercepts communication between two parties. Data is stolen and is even modified
Poor Password and Authentication Flaws- The security is not up to mark. It thus allows someone to get access to the account without permission from the owner.
Knowing those threats, you can act to secure your network against them a lot before.
Step 2: Access Network Access Controls
The best technique to ensure that no attacks creep into your network is by controlling what access is allowed in your network. Here are some ways how you can control access:
Use of Strong Passwords- this will make sure all your users have developed such passwords. It won’t be easy to guess for anyone. Let it have any combination of upper and lower cases, number, and at least special character.
Multi Factor Authentication-this one will introduce an additional mechanism of authentication using something else like a scan of your finger tip or getting one time password.
Limit user access-The PoLP is used; the user needs to have as little access as it requires to have.
Monitor user activity-Might have a chance at logging all of their login attempts and network activities; something stinks.
Step 3 Secure network hardware and infrastructure
The computers and servers are not your network security but the routers, firewalls, and so forth which connect to your network.
Save your network hardware with these tips:
Keep on updating and patching the devices often. “Legacy” software and firmware contain known exploits that cyber crooks will look for.
Implement Firewalls protection – the firewalls set a layer of protection between the network and incoming external threats going into your system, and only allow a certain form of traffic
Ensure to use Safe Wi-Fi Network –The over WI-FI connections would ensure an encrypted connection using WPA3 security protocol as well as change the default router credentials.
Segment the Network – Segment your network into various areas such as a guest Wi-Fi area, areas for employees only, and data storage with sensitive information so that the effects of a possible breach are not extreme.
Step 4: Data Encryption
Data encryption is more or less critical to the reason of preventing unauthorized users from accessing sensitive information. Here’s how you can make it effective:
Use of End-to-End Encryption (E2EE) – It locks the data from sender to the receiver, which cannot be accessed by any third person.
Encryption of Stored Data – It uses AES encryption so files and databases get encrypted
Secure Email Communications- All emails will have encrypted information that will be kept from any other view or reading by someone.
Use of VPNs (Virtual Private Networks)- Internet traffic will be encrypted by the use of VPN and this traffic as it passes through the VPN
Step 5: Employee/User Education
The most common source of cybersecurity risk is human error. The reduction in vulnerabilities will depend on educating the employees and the users of the best practices. Some training programs to consider include the following:
Periodic Security Awareness Training- train employees on how to detect phishing emails, be cautious while clicking on the links, and how to treat sensitive information
Phishing Simulation- simulate the phishing attempts that may be targeted at the employees and how they would react to such an event and enhance their awareness levels.
Cybersecurity Policy- determine the rules regarding password management, usage of devices, and reporting incidents related to security issues
Step 6: Monitoring and Incident Response
Though these measures are preventive in nature, there is always a threat somewhere. However, implementing the monitoring and an alert response strategy would mean that detection of threats shall be much quicker
IDS(Intrusion Detection System), IPS(Intrusion Prevention Systems) as a tool of real-time analysis. It continuously detects malicious traffic of the network with the capabilities of automatically blocking intrusion.
Create a Security Incident Response Plan – Establish procedures on how to spot, contain and mitigate cyber incidents.
Backing up Data in the Regularity- Establish some backs of significant data that controls damage from any attack or leakage of data following ransomware.
Reviewing log security and report- Record a history of record of log activities in system accounts that will allow tracking access records of unauthorized accounts or other relevant suspicious activity.
Step 7: Constantly Monitor on the Emergence of New Threats
Cyber threats change over time, and so a person must be updated with recent security trends for him to protect his network.
Subscription of Cybersecurity Alerts- Keep tracking the security agencies like Cybersecurity & Infrastructure Security Agency (CISA) and CERT, updates
Security Conferences and Training- Consult cyber professionals, and update himself with recent strategies of defense.
Monitoring and Evaluating Security Measures – Security audits and penetration testing of possible vulnerabilities
Conclusion
Network security is something that is always in progress with keeping watch and adaptation. It all lies in following this step-by-step approach which includes understanding risks, controlling access, securing infrastructure, putting in place encryption, educating the users, monitoring activity, and staying updated.
Either is your corporate network or securing your home Wi-Fi. With these best practices, your digital assets will be safe and sensitive information out of your home. Be proactive, be secure!
