Por qué nunca debe responder “¿hola?” al contestar una llamada silenciosa de un desconocido

Experts advise against saying "hello" when answering silent phone calls from unknown numbers, as it can be exploited for future fraud. Even brief interactions of only a few seconds allow automated systems or scammers to confirm that a specific telephone line is active and monitored.

Confirming an active line validates contact data for bad actors, potentially leading to targeted phishing, scam calls, or other fraudulent activities. Citizens are urged to exercise caution with unidentified callers to protect their personal security and privacy.