If you receive a text message on your smartphone from an unknown sender and the content is suspicious, it might be spam. Usually, the spammer has acquired your number illegally from a database or they are sending messages to random numbers.
Use common sense to minimise the receipt of spam. So, only give your smartphone number to people your trust.
Examples of spam messages:
‘If you send this message to 12 people, you will receive 650 free text messages’.
‘Congratulations! You are the winner of the day! Go to -website- to request your prize.’
In contrast to traditional spam, you may also receive a chain ‘letter’ from a friend or acquaintance that they had previously received. These spam messages should not be forwarded.