When you receive a scam SMS, immediately block the number to prevent further messages from that sender. Do not respond to the message, as this can confirm your number is active and potentially lead to more messages. You can also report the scam SMS to your mobile carrier and to the relevant authorities like the Australian Communications and Media Authority (ACMA). 

 
Here’s a more detailed breakdown:
1. Block the number:
  • Most smartphones allow you to block numbers directly within the messaging app or through your phone’s settings.
  • Blocking prevents the sender from contacting you again through that number.
  • You will need to individually block each scam number, as there’s no way to mass block. 
     
2. Don’t respond:
  • Avoid engaging with the scammer, even to unsubscribe or tell them to stop. 
     
  • Responding confirms your number is active and could lead to more scam attempts. 
     
3. Report the scam:
  • To your mobile carrier:

    Check your carrier’s website or app for instructions on reporting spam messages. 

     
  • To the ACMA:

    In Australia, you can report scam SMS messages to the ACMA, which may investigate and take action against the sender. 

     
  • To law enforcement:

    If you have been threatened or if your property has been stolen, contact the police immediately. 

     
  • Consider third-party apps:

    Some apps offer more robust spam and call filtering capabilities. 

     
4. Consider using spam filters:
  • Many carriers offer spam filtering features that can automatically block or filter out suspicious messages.
  • Check your carrier’s settings or app for options to enable and customize these filters.
  • Your phone’s built-in features may also include spam filtering options. 
     
5. Change passwords if needed:
  • If the scam involves any of your online accounts, change your passwords immediately.
  • Be sure to use strong, unique passwords for each account. 
     
6. Be cautious with links and attachments:
  • Never click on links or open attachments from unknown senders, as these could lead to malware or phishing websites.
  • If you accidentally click a link, run a malware scan on your device. 
     
By taking these steps, you can protect yourself from future scam attempts and help authorities take action against the scammers.