Remediation 🟢 Protection

Remediation in cyber security involves correcting, closing or neutralising a loophole or an vulnerability identified in an information system, network or application.

Why is remediation essential?

• • Preventing attacks : By correcting vulnerabilities, you considerably reduce the risk of falling victim to a cyber attack. cyber attack.
  • Damage limitation : if an attack has already occurred, remediation can limit the consequences and prevent it from happening again.
  • Regulatory compliance : numerous regulations (RGPD, NIS 2, etc.) require organisations to implement effective security measures, including remediation.

Typical stages in a remediation process

1. 1. Identifying vulnerabilities : vulnerabilities and weaknesses in the system, applications or networks are identified during security audits, penetration testing, security analysis or intrusion detection systems.
   2. Risk assessment : Each identified vulnerability is assessed in terms of potential risk, considering the potential impact of successful exploitation and the likelihood of this occurring.
   3. Prioritisation Vulnerabilities are classified according to their level of risk. High-risk vulnerabilities are generally treated as a priority
   4. Choice of solution : a number of options can be considered, including software updates, configuration of firewallapplication of patches, etc.
   5. Implementation : the chosen solution is executed.
   6. Monitoring and verification : we check that the vulnerabilities have been corrected and that the system is once again secure.
   7. Documentation: all stages of the remediation process are documented to facilitate monitoring and audits.

Examples of remediation

• • Installation of software patches to correct vulnerabilities.
  • Setting up quarantine or deletion for malware or virus.
  • Modifying firewall rules to block unauthorised access.
  • Resetting passwords in the event of compromise.
  • User training : to raise awareness of good safety practice.