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Silent Calls From Unknown Numbers May Indicate Active Line Testing, Congested Robocalls or Even Scam Attempts; See How to Act
Anyone who has received a call from a unknown number that hangs up without anyone speaking knows the discomfort well. This type of call is more common than it seems and can have different reasons, including scams.
Active Number Verification
Most of the time, these calls are made by companies. The goal is simple: to verify if the number is active. When the person answers, even if no one speaks, the system registers that there is someone on the other side.
As a result, the number may be added to a list to receive future calls for collections, offers, or other services.
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Robocalls and Congested Lines
Another explanation involves the use of robocalls. These automated systems make the call, and if someone answers, the call can be transferred to an attendant.
However, when all lines are busy, the call is disconnected without anyone speaking. This explains why so many calls go silent and drop shortly after.
Criminals Also Use the Strategy
This type of call can also be used by scammers. By confirming that the number is active, criminals begin to call more frequently.
Later, they try to carry out scams using other channels, such as SMS messages or WhatsApp. The recommendation is to never click on links or provide personal information in these cases.
How to Protect Yourself From These Calls
Avoiding answering calls from unknown numbers is the first step. If the cell phone identifies a call as possible spam, it is best not to answer. Experts also advise against providing data such as full name, CPF, address, or banking information over the phone.
Another important tip is to block the number directly from your phone. This can reduce the number of repeated calls throughout the day and prevent further disruptions.
With information from UOL.
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