- Existen herramientas avanzadas que permiten filtrar mensajes basándose en términos específicos para evitar el acoso constante.
- Tanto Android como iOS ofrecen funciones nativas para bloquear remitentes y marcar comunicaciones como no deseadas.
- The use of third-party applications with artificial intelligence dramatically improves the detection of phishing and fraud.

I'm sure it's happened to you: you're relaxing on your phone and suddenly you get a message from someone you don't know talking about an incredible loan or claiming you've won a prize draw you didn't even enter. This type of unsolicited messages They have become commonplace and can be a real headache if we don't know how to stop them.
Lo peor de todo es que ya no se trata solo de publicidad molesta; ahora nos enfrentamos a técnicas de social engineering and phishing designed to steal our personal data or trick us into installing malware. That's why it's essential to know all the tools we have at our disposal to make our inbox a safe and nuisance-free place again.
Entendiendo la amenaza: Spam, Phishing y Bombardeo
When we talk about spam, we're referring to those mass communications that arrive via SMS or messaging apps. They usually come from números desconocidos o robots que utilizan marcadores automáticos. Aunque muchos son inofensivos, otros intentan suplantar identidades para estafarnos.
Phishing is a step further and much more dangerous. Here, the attacker tries to get you to give them... passwords, usernames, or bank details mediante engaños. Un ejemplo típico es el mensaje que dice que hay un problema con tu declaración de la renta o que tienes un paquete retenido que requiere un pago extra. Recuerda que ninguna entidad gubernamental No reputable logistics company will ask you for money or sensitive data via a simple SMS.
On the other hand, there's SMS bombardment, which involves flooding your phone with thousands of messages from different numbers. Sometimes it starts as a harmless joke, but it can escalate into a case of cyberbullying , which is very difficult to stop simply by blocking individual numbers.
¿Por qué tenemos el móvil lleno de spam?
Many people wonder how spammers get their number. One of the most common ways is to have perfiles públicos en redes sociales como Instagram o Facebook, donde dejamos expuesto el contacto. También ocurre que, al registraros en webs de compras o servicios, estos comparten vuestra información con data brokers.
In addition, there are automated number generation technologies that create random number ranges, so your number might appear on the list simply due to statistics and luck . There are also Automatic Number Identification (ANI) systems that collect data when we call toll-free numbers.
Cómo bloquear SMS en Android sin complicaciones
Si no quieres instalar nada raro, Android tiene opciones integradas. La forma más directa es entrar en la aplicación de mensajes, dejar pulsado el chat que te molesta y seleccionar la opción de block or mark as spam. Dependiendo de la marca de tu teléfono, puede que tengas que entrar primero en el menú de tres puntos y buscar la sección de detalles.
For those who use the Google Messages app, there's an even more powerful feature. You can go to settings, enter the advanced section, and activate it. anti spam protection. Esto hace que el sistema analice los mensajes automáticamente basándose en una base de datos global y los mueva a una carpeta aparte sin que te lleguen notificaciones.
Advanced filtering: Blocking by keywords
When spam is persistent and the numbers are constantly changing, blocking the sender is useless. In these cases, the solution is... filtered by keywords. Esto permite que cualquier mensaje que contenga un término específico (como el nombre de una persona que no conoces o palabras como «préstamo» o «cripto») sea ocultado automáticamente.
To achieve this on Android, you need to use specialized apps. Tools like SMS Blocker allow you to create custom rules to prevent messages with banned words from reaching your inbox. Other interesting options include Call Control , which uses the collective intelligence of its community to identify scams, and Key Messages , which uses AI to categorize spam.
Options for iPhone users
On iOS, the process is similar but with its own particularities. You can block a contact by going to the sender's information and selecting bloquear este contactoIf the message doesn't have a visible number, one trick is to try calling the sender, hang up quickly, and then block the number from your phone. Call History.
Una función muy útil en iPhone es el filtrado de remitentes desconocidos. Desde los ajustes de Mensajes, puedes activar filter unknownsThis ensures that SMS messages from people not in your address book are saved in a separate list, preventing notifications from interrupting your day.
Apps recomendadas para una limpieza total
Si buscas una capa de seguridad extra, existen aplicaciones muy completas. TrueCaller es probablemente la más famosa por su enorme base de datos que identifica llamadas y SMS de spam en tiempo real. Para quienes priorizan la privacidad, Vero SMS es una gran opción ya que permite bloquear por palabras clave sin acceder a los contenidos de tus mensajes privados.
Another powerful alternative is SMS Shield , which uses machine learning to learn what constitutes spam in your specific case and offers a frequent traveler mode, ideal for blocking suspicious international messages. Finally, comprehensive solutions like Avast One add malware protection, preventing you from clicking on dangerous links that could compromise your device.
Consejos de oro para mantener la seguridad
Rule number one is Never reply to a spam SMS. Al hacerlo, confirmas al atacante que tu línea está activa y que eres una persona real, lo que provocará que te envíen aún más basura. Igualmente, evita a toda costa hacer clic en enlaces acortados o sospechosos, ya que podrían llevarte a webs de pharming designed to steal your identity.
It's advisable to check your phone bill periodically to detect unusual charges, as some attacks force your phone to send messages to [unclear - possibly "attacks" or "attacks"]. números prémium Without you even realizing it. Keeping your personal information private and using a security-focused browser helps mitigate risks when browsing the web.
To maintain control of your device, the ideal solution is to combine native Android or iOS features with third-party apps that allow for intelligent keyword filtering and number reporting to carriers. By avoiding interaction with suspicious senders and setting up strict filters, we transform your mobile device into a much safer and more secure environment against modern scams.



