What is spam?
Spam is any unsolicited communication on the internet. Predominantly generated via email, when it is known as ‘junk email’, you can also receive other types via different media – for example, text message spam, instant message spam (sometimes known as 'spim') and social networking spam through Facebook messages.
Spam is essentially advertising for services or products through bulk-messaging, and is mainly harmless. But it can also be of a more malicious nature as part of an identity theft scam commonly known as phishing.