Cybersecurity is now a major issue for companies, whatever their size or their sector of activity. With cyber threats on the rise, drawing up a robust, tailored cybersecurity plan is indispensable. In this article, we will guide you through the essential steps for establishing an effective cybersecurity plan. Whether you are a chief information security officer (CISO) or a company executive, this article will give you practical, concrete advice for securing your organisation against digital risks.
Why a cybersecurity plan is essential for your company
Cyberattacks are multiplying all the time, and their impact on a company can be disastrous. Poor management of cybersecurity can lead to financial losses, to leaks of sensitive data and to damage to the reputation of the organisation.
The growing risks of cybercrime
Cybercriminals are becoming more and more sophisticated. In 2023, the number of cyberattacks recorded in France soared, putting companies in every sector in difficulty, from SMEs to large groups. Theft of personal data, ransomware and denial-of-service attacks are all threats that weigh on your company. One alarming figure: in 2022, cyberattacks cost French companies more than 1 billion euros.
The consequences of poor cybersecurity management
The consequences of a cyberattack can go well beyond the mere theft of data. Business interruption, lost revenue and declining customer trust can threaten the very survival of the company. A major incident can also affect the morale of internal teams, increase workloads and create a climate of permanent crisis.
Meeting regulatory obligations (GDPR, NIS 2, DORA)
Beyond the immediate risks, failing to comply with the texts that apply to cybersecurity, such as the GDPR, NIS 2 or DORA, exposes your company to heavy financial penalties. In France, the national agency for the security of information systems (ANSSI) plays a crucial role in monitoring and managing security incidents.
The essential components of a cybersecurity plan
A good cybersecurity plan rests on several pillars. Here are the essential elements that must feature in your strategy.
Risk assessment
The first step in establishing a cybersecurity plan is to assess the risks to which your organisation is exposed. This involves analysing the vulnerabilities of your IT systems, reviewing access rights and mapping the risks linked to your third parties and suppliers. This step will allow you to prioritise the actions to put in place to secure your data.
Implementing an ISMS (Information Security Management System)
The Information Security Management System is a reference framework for managing security within an organisation. It makes it possible to structure security policies and to ensure that risks are managed consistently. Adopting the ISO 27001 standard is a common practice for implementing a robust ISMS, one that is recognised at international level.
Security incident management and MTTR (mean time to respond)
When an incident occurs, response time is paramount. You have to react quickly to limit the damage. This is what is known as the mean time to respond (MTTR). The shorter this time, the less serious the consequences of a cyberattack will be. Good incident management relies on clear procedures, teams ready to step in, and tools capable of detecting anomalies quickly.
Security in projects (ISP)
Building security into projects is another key area. By anticipating risks from the design stage of a project, you minimise potential flaws. This approach, known as ISP (security in projects), ensures that every digital transformation is carried out in line with cybersecurity best practices.
Steps to create a solid cybersecurity plan
Putting an effective cybersecurity plan in place calls for a methodical, structured approach. It is not only a matter of reacting to an attack, but of preventing, detecting, responding to and recovering from cyber threats. Here are the key steps for building a robust plan that covers all the essential aspects.
1. Assessing your company’s specific needs
First and foremost, it is crucial to understand your company’s unique cybersecurity needs. Every organisation has its own characteristics, whether in terms of size, sector of activity or digital infrastructure.
To carry out this assessment, here are the questions to ask yourself:
- What types of data do you process? Is it sensitive data (personal, medical or financial data) that needs stronger protection?
- What are your critical assets? Identify the most important systems and resources, those whose compromise would have serious consequences for the company.
- What are the potential threats? Each sector of activity is exposed to specific threats: an industrial SME does not face the same risks as a healthcare establishment, for example.
Assessing your needs also involves mapping the vulnerabilities in your current infrastructure. This includes:
- The devices connected to your systems (computers, servers, mobile devices).
- The applications used in the company.
- Internal and external networks (Wi-Fi, VPN).
- Remote access by employees and service providers.
An in-depth analysis of risks and vulnerabilities will allow you to prioritise the actions to take to protect your most critical assets.
2. Putting security policies and procedures in place
Once you have identified your needs and your risks, it is time to formalise cybersecurity policies that govern behaviour within the organisation. These policies provide a framework for the use of systems and data, and raise awareness of best practices among all employees.
Here are a few essential elements to include in your cybersecurity policies:
- Password management: Rules on the creation, complexity and management of passwords, including the use of password managers.
- Access to systems: Putting access control policies in place to restrict access to sensitive data to authorised people only.
- Data encryption: Applying encryption to data in transit and at rest, particularly for sensitive information (customer data, financial data, etc.).
- Network security: Setting clear rules for the use of Wi-Fi, VPNs and other means of secure communication.
Cybersecurity policies must be backed by clear procedures for each potential situation. For example, the procedure to follow if a mobile device containing sensitive information is lost, or the steps to take to report a security incident. Procedures must be easy for teams to understand and to follow.
3. Incident response plan and business continuity
A good cybersecurity plan must provide for a clear and precise incident response plan. This plan is crucial for reacting quickly and effectively in the event of an attack, in order to limit the damage. It must set out everyone’s roles and responsibilities and provide a methodological framework for managing the crisis.
The main components of an incident response plan include:
- Identifying and notifying incidents: What are the criteria for deciding that an incident is taking place? How should the team be alerted?
- Initial response: As soon as an incident is detected, what are the first measures to take? This may include isolating the affected systems, communicating with the parties concerned, or mobilising the technical teams.
- Crisis communication plan: Who needs to be informed, and when? This concerns internal teams, external service providers and, where relevant, customers. Good communication reduces the impact of an incident and helps avoid panic.
- Post-incident analysis: Once the incident is under control, it is important to take stock in order to identify weaknesses and implement corrective actions.
At the same time, your cybersecurity plan must include a business continuity plan (BCP). This plan guarantees that, even in the event of a major incident, the company’s activity can continue or restart quickly. This may include setting up data backup systems, redundancy for critical systems, and disaster recovery processes.
4. Monitoring and continuous improvement
A cybersecurity plan must never be set in stone. Threats evolve quickly, as do technologies and regulatory requirements. Continuous monitoring is therefore essential to detect anomalies and prevent incidents before they become critical.
The key steps for maintaining a high level of security include:
- Setting up intrusion detection systems (IDS): These tools make it possible to spot suspicious activity on the network, such as unauthorised access attempts.
- Monitoring activity logs: Regular analysis of system activity logs allows you to detect unusual behaviour or signs of an attack.
- Regular security testing (pentests): Carrying out penetration tests or external audits periodically makes it possible to check how well your system stands up to potential cyberattacks.
- Compliance audits: Making sure that policies and procedures are aligned with the applicable standards and regulations, such as ISO 27001, the GDPR or NIS 2.
Continuous improvement also relies on lessons learned after each incident. Every flaw or attack must be analysed in depth to identify weak points, and these lessons must then be built into the overall risk management process.
Tools and solutions to make it easier to put a cybersecurity plan in place
A cybersecurity plan requires suitable tools and solutions. Here are a few examples.
SaaS cybersecurity management solutions
SaaS solutions such as those offered by Make IT Safe allow you to manage your organisation’s cybersecurity effectively. These tools make third-party analysis, risk management and the overall steering of cybersecurity easier, by providing a centralised, collaborative platform.
Tools for security audits and risk management
There are specialised tools for carrying out security audits and identifying the vulnerabilities of IT systems. These audits are essential for detecting flaws and fixing them before they are exploited by cybercriminals.
Incident management software and MTTR tracking
Dedicated software packages make it possible to manage security incidents in real time, thereby reducing response time and limiting the impact of cyberattacks. These solutions help to coordinate actions and to optimise MTTR.
Best practices for keeping a cybersecurity plan up to date
A cybersecurity plan must be able to evolve and adapt to new threats.
The importance of continuous training and awareness
When it comes to cybersecurity, people often remain the weak link. That is why it is crucial to train teams regularly in best practices. This is done through awareness sessions, attack simulations (crisis exercises) and briefings on the new threats.
Carrying out regular tests and audits
Penetration tests and audits are indispensable for checking the effectiveness of your cybersecurity plan. They make it possible to identify flaws and fix weak points before they are exploited.
Adopting a collaborative approach
Cybersecurity is not only a matter for the IT team. It must be a collaborative approach involving all of the company’s stakeholders, including suppliers and external partners. This approach strengthens resilience against cyber threats.
An effective cybersecurity plan is essential to protect your company against cyberattacks. By following the steps set out in this article, you will be able to draw up a robust plan that is adapted to your needs and compliant with regulatory requirements. Do not wait for an incident to happen before acting. Protect your systems, your data and your employees starting today.
