Data Protection

Data Protection

1. Firewall

   • Firewalls can be software or hardware based firewalls work by using a set of rules that filter and reject unwanted or suspicious network packets arriving from a remote network
   • hardware firewalls usually exist by sitting between an extewrnal network and an internal connection
     • for example, the internet and a local are network(LAN), such as that used by an organisation. Firewalls form the first line of defence in protecting digital systems from external threats such as cyberattacks and viruses
   • benefits of a firewall
     • they can stop attackers from gaining unauthorised access to a device
     • software firewalls are easy to install. There is usually a 'wizard' available to guide you through the setup
   • disadvantages of a firewall
     • firewalls can block legitmate things like access to some websites that are completely safe and trustworthy
     • highly effective firewalls can be very expensive. Many have a yearly subscripition which can increase year on year

2. Anti-virus software

   • anti-virus software monitors a digital system, attempting to identify and remove malicious software through unique detail signature in the virus before it can cause damage
   • benefits of Anti-viruses software
     • they can stop files that contain viruses from accessing your computer system
     • some anti virus software is free
   • disadvantages of anti-viruses software
     • anti-virus software needs to be continually updated to ensure it can detect new viruses