You might get a call from someone claiming that your computer is in need of a security or software upgrade. However, to get this update, you would need to provide your software user account ID and password to the caller.
Sometimes, you might also be asked to type several commands into your computer, after which you might notice your computer falling under someone else's control. Or, you might be asked to purchase additional software online, while the scammers take your credit card or bank account details for their fraudulent use.
WHAT TO LOOK OUT FOR
- If a person calls you with news intended to make you feel vulnerable, such as the security of your computer, this could be a scam
- Be wary of cold calls such as these, especially if the conversation leads to the caller to requesting payment for a “software upgrade”
HOW TO PROTECT YOURSELF
- You should ignore such calls, and never follow the caller's instructions to install software or type commands into your computer
- Do not divulge bank account details or credit card numbers to such callers
Source: Scam Alert Singapore