Phishing

Steve says:

A criminal activity using social engineering techniques, characterised by attempts to fraudulently acquire sensitive information, such as passwords and credit card details, by masquerading as a trustworthy person or business in an apparently official electronic communication, such as an email or an instant message. The term phishing arises from the use of increasingly sophisticated lures to "fish" for users' financial information and passwords.

Doris says:

Things are not always what they seem. Never ever give your usernames, passwords, bank or credit card details to someone you don’t know.