Data security

Data security

1. Virus

   • A computer virus is a piece of program code that makes copies of itself to another program. The virus can waste the resources, and destroy or change files
     • Viruses are usually spread by a computer network or by e-mail.

2. Phishing

   • “Phishing” is internet fraud where criminals try to steal information such as credit cards, user names for bank accounts

3. Hacking

   • Hacking means to illegally access other people's computer systems in order to destroy, disrupt or carry out something illegal.
     • Hacking is usually carried out remotely, if someone outside a company wants to try to break into the computer system.

4. Firewall

   • A firewall is designed to help protect a computer network from intruders.
     • It does this by controlling what data can and cannot pass through it.