 Jassim's delighted. He's just got an SMS telling him that he's won 50,000 real. But hang on, Jassim doesn't remember giving out his number, and come to think of it, he didn't enter any competition. Sorry, Jassim. Looks like you've been spammed. So what is mobile spam, and how can you spot it? Mobile spam is usually unwanted advertising sent to your phone. These messages are sent out in bulk to thousands of people at a time, and they often don't let you unsubscribe. And while mobile spam can be annoying, it becomes a real problem when it lures you into mobile scams. Mobile scams are designed to trick you into giving away your money. Scams might be hidden behind messages that claim someone wants to meet or chat with you, or that you want a prize. For example, the missed call scam, where the caller hangs up before you answer the phone, and if you call back, you suddenly find yourself signed up for unwanted, expensive services. The bottom line? If a message or call isn't from a number you know or a service you've requested, it could well be a scam. Don't share your friend's numbers, and ask companies why they need your number before handing it out in sign-ups, surveys, and questionnaires. Check incoming spam messages to see if there's a way to unsubscribe. Don't reply to SMSs you don't recognise, and don't call back unknown numbers. By being careful about who he gives his number to, Jasim's phone is spam-free and protected from scammers. Get in touch and email us at consumervoiceatict.gov.qa, or if you have a problem you can't resolve with your service provider, call us at 103 within-cutter, or country code 974-4406-3938 internationally.