Phishing is a type of online fraud in which cyber criminals send emails or instant messages pretending to be from a reputable company or person, in an attempt to access sensitive information, such as login credentials or account details.
Things have evolved since the days of emails promising jackpot payouts on the Nigerian lottery, and phishing emails generally come in the form of an official-looking correspondence from your bank or an organisation like PayPal.
And this increased level of sophistication brings with it an increased level of threat – even just clicking a link within an email can send a bug into your system that can access any sensitive data you have stored on your hard drive.