5 CYBER SECURITY
Andy Lucas
INTRODUCTION
When the National Health Service (NHS) came to a standstill in 2017, it was because of the effects of a global cyber security incident known as a ransomware attack. Exploiting security weaknesses in computer systems, criminals purposely installed malicious software that was designed to spread and infect servers and networks, desktops and laptops, tablets and smartphones, rendering them unusable by corrupting or encrypting the data held in them. With governments and business so dependent on IT systems and networks, and so much financial and personal information about all of us as individuals stored in data centres all over the world, cyber security should be a matter of concern to everyone. This chapter ...
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