Phishing is a method used by hackers to steal personal information through deceptive means such as spam or fake websites. There are many types of phishing techniques, including instant messaging links to fake websites, trojan hosts, key loggers to steal passwords, session hacking to intercept web session information, fake search engine results linking to phishing sites, phone calls asking users to input bank details, and malware attached to emails or downloads to steal data from victims' computers. It is important for users to be aware of these techniques to protect themselves from phishing attacks.