This bachelor’s thesis, done as a literary review examines phishing by introduc-ing execution and protection ways for email phishing and reasons why it is suc-cessful so often. Phishing is happening all the time worldwide and almost any-one can be a victim of it. Phishing causes every year massive economic damages to normal people and organizations. Email has been commonly the most used phishing platform for phishing and even technology evolves all the time and new ways for phishing come up, massive amounts of phishing messages are sent via email. This bachelors thesis introduces four common execution ways for phishing: spear phishing, nigerian letters, clone phishing and malware based phishing. These are effective ways for phishing and that is why it is im-portant to know how to be protected against them. Two most important ways to be protected against phishing are technological solutions and education. There are many kinds of technological solutions and combining these solutions with education is the most effective way to be protected against phishing. However, it is almost impossible to be fully covered against phishing. Phishers try to understand people and try to affect to their way of thinking, to be able to gain their trust and get them to give information without thinking. People per-sonal aspects as age, gender, culture and earlier experiences may also affect to the effectiveness of phishing.