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Intro - best practices for securing a network

Defending your network against attack requires vigilance and education. The following are best practices for securing a network:

  • Develop a written security policy for the organization.
  • Shut down unused services and ports.
  • Use strong passwords and change them often.
  • Control physical access to devices.
  • Avoid using standard insecure HTTP websites, especially for login screens; instead use the more secure HTTPS.
  • Perform backups and test the backed up files on a regular basis.
  • Educate employees about social engineering attacks, and develop policies to validate identities over the phone, via email, and in person.
  • Encrypt and password-protect sensitive data.
  • Implement security hardware and software, such as firewalls.
  • Keep software up-to-date by installing security patches weekly or daily, if possible.

These methods are only a starting point for security management. Organizations must remain vigilant at all times to defend against continually evolving threats. Use network security tools to measure the vulnerability of the current network.

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