A firewall is a barrier that helps to protect your computer system and also other computer systems that you are connected to. A firewall will notify you if there is any incoming traffic such as someone trying to gain access to your PC will then hit the firewall and warn you of this. Also some firewalls that are a more advanced software can detect outgoing traffic too.
Backups are a very helpful and popular way today in IT if things do not got as planned in IT, such as losing data or also stolen, if they are stolen make sure you have all security possible on the information you had so no one can gain access to it. Backups are very useful as of if an organisation may lose someone’s personal details, with a backup they can get them back, the more backups you have the better, but the more backups you have the more chance someone’s details can be stolen or lost then you dont know where they are at all, this is why you need to protect these backups with as much security as possible or the legal implication can become of job loss and the organisation be sewed.
Spam are things such as advertising e-mails and pop ups that contain viruses that will end up damaging your computer system, and not running how you would like it too. A way around this is only opening e-mails your know where they are from, if you receive an e-mail from an anonymous user do not open or click any link attached and delete, also if you have an e-mail telling you to perform a certain action for example your bank asking to send personal information or to deactivate your account, contact the bank or go to the bank itself to confirm that the e-mail was from them, as hackers and phishers will be after your personal information.
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