Online / browsing security precautions are now more important than ever. What are the differences between these threats:Phishing, Spoofing and Pharming?

Phishing is to create a fake site same like the original one and share with the user to get confidential information like username and passwords

Pharming is also like phishing but the in Pharming DNS entries or host file are changed to redirect the user to fake site whereas in phishing the URL and site both get changed.

Spoofing is to impersonate by changing packets headers to breach security and to gain unauthorized access