Cybersécurité : « Ça coûte dix fois moins cher de se protéger que de subir une attaque

By /

Listen to this Post

Featured Image
Source: lesechos.fr

You Should Know:

Essential Cybersecurity Practices to Prevent Costly Attacks

1. Patch Management

  • Keep systems updated to prevent exploitation of known vulnerabilities.
    Linux (Debian/Ubuntu) 
sudo apt update && sudo apt upgrade -y

Linux (RHEL/CentOS) 
sudo yum update -y

Windows (PowerShell) 
Install-Module PSWindowsUpdate -Force 
Install-WindowsUpdate -AcceptAll -AutoReboot

2. Firewall Configuration

  • Restrict unnecessary inbound/outbound traffic.

    Linux (UFW) 
sudo ufw enable 
sudo ufw default deny incoming 
sudo ufw allow 22/tcp  Allow SSH

Windows 
netsh advfirewall set allprofiles state on

3. Multi-Factor Authentication (MFA) Enforcement

  • Use tools like Google Authenticator or hardware tokens.
    Linux (SSH MFA with Google Authenticator) 
sudo apt install libpam-google-authenticator 
google-authenticator  Follow setup

4. Backup Automation

  • Schedule encrypted backups to secure locations.

    Linux (rsync + cron) 
rsync -avz --delete /critical/data/ user@backup-server:/backup/ 
crontab -e 
0 2    rsync -avz --delete /critical/data/ user@backup-server:/backup/

Windows (Robocopy) 
robocopy C:\Data \BackupServer\Backup /MIR /Z /R:1 /W:1

5. Network Monitoring (IDS/IPS)

  • Deploy Snort or Suricata for real-time threat detection.
    Linux (Snort) 
sudo apt install snort 
sudo snort -A console -q -c /etc/snort/snort.conf -i eth0

6. Phishing Simulation

  • Test employees with tools like GoPhish.
    Linux (GoPhish Setup) 
wget https://github.com/gophish/gophish/releases/download/v0.12.1/gophish-v0.12.1-linux-64bit.zip 
unzip gophish-.zip 
chmod +x gophish 
./gophish

7. Endpoint Protection

  • Use ClamAV (Linux) or Windows Defender (Windows).

    Linux (ClamAV) 
sudo apt install clamav clamav-daemon 
sudo freshclam 
clamscan -r /home

Windows (Defender Scan) 
Start-MpScan -ScanType FullScan

8. Log Analysis

  • Centralize logs with ELK Stack or SIEM tools.
    Linux (ELK Stack) 
docker pull docker.elastic.co/elasticsearch/elasticsearch:8.10.0 
docker pull docker.elastic.co/kibana/kibana:8.10.0

What Undercode Say

Investing in cybersecurity is far cheaper than recovering from a breach. A single ransomware attack can cost millions, while preventive measures like firewalls ($0 open-source), MFA (free with Google Authenticator), and employee training (low-cost simulations) reduce risk exponentially.

Expected Output:

  • A hardened system with automated backups, MFA, and real-time monitoring.
  • Reduced attack surface via patching and firewall rules.
  • Awareness through phishing tests and log analysis.

For deeper insights, refer to the original article: lesechos.fr.

References:

Reported By: Agathemalkani Cybers%C3%A9curit%C3%A9 – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

Join Our Cyber World:

💬 Whatsapp | 💬 Telegram

Related Posts: