Why are firewalls so important within an IT environment?

Why are firewalls so important within an IT environment?

What are the different firewalls and are all types still in use today? What concepts/inputs would you consider when updating an out of date firewall within an IT environment? -500 words

There have been many books and opinion pieces written about the impact of AI on jobs and ideas for societal responses to address the issues. Two ideas were mentioned in the chapter – UBI and SIS. What are the pros and cons of these ideas? How would these be implemented? – 500 words

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word limit:1140