{"id":2671,"date":"2026-03-18T16:51:04","date_gmt":"2026-03-18T19:51:04","guid":{"rendered":"https:\/\/hackerrangers.com\/?p=2671"},"modified":"2026-03-18T17:08:02","modified_gmt":"2026-03-18T20:08:02","slug":"que-es-nfc-y-que-precauciones-debes-tomar-con-esta-tecnologia","status":"publish","type":"post","link":"https:\/\/tmp-hackerrangers.siteup.dev\/es\/awareness\/que-es-nfc-y-que-precauciones-debes-tomar-con-esta-tecnologia\/","title":{"rendered":"\u00bfQu\u00e9 es NFC y qu\u00e9 precauciones debes tomar con esta tecnolog\u00eda?"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Seguramente has escuchado hablar \u2014o le\u00eddo en alguna parte\u2014 sobre la tecnolog\u00eda NFC, pero no todos saben exactamente qu\u00e9 es o c\u00f3mo funciona. En primer lugar, aqu\u00ed va una verdad que podr\u00eda chocar a m\u00e1s de uno: aunque la NFC reci\u00e9n se volvi\u00f3 popular en Brasil en los \u00faltimos a\u00f1os, el est\u00e1ndar NFC (sigla de Near Field Communication, Comunicaci\u00f3n de Campo Cercano en espa\u00f1ol) no es algo nuevo. De hecho, naci\u00f3 en 2002 a partir de bosquejos t\u00e9cnicos realizados por las empresas Philips y Sony.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">La idea era simple: crear una tecnolog\u00eda que permitiera a dos dispositivos intercambiar informaci\u00f3n entre s\u00ed sin la ayuda de cables al ingresar a un campo electromagn\u00e9tico de baja amplitud (en t\u00e9rminos de unidad de longitud, hablamos de una distancia de 10 cent\u00edmetros como m\u00e1ximo, pero, por lo general, es incluso m\u00e1s peque\u00f1a, situ\u00e1ndose en el rango de dos a tres cent\u00edmetros). Las aplicaciones de NFC son variadas y, con la ayuda de la japonesa Sony, se popularizaron de inmediato en la regi\u00f3n asi\u00e1tica.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Lo mejor de esta tecnolog\u00eda es que, al igual que la antigua RFID (Radio-Frequency Identification, o Identificaci\u00f3n por Radiofrecuencia), la NFC no requiere que el titular de su chip tenga su propia fuente de energ\u00eda, lo que permite incorporarlo a las tarjetas, etiquetas e incluso adhesivos. En la llamada lectura pasiva, es el dispositivo lector (que puede ser un smartphone o un receptor dedicado para eso) el que energiza el chip cuando se acerca, leyendo, grabando o modificando los datos grabados en \u00e9l.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Actualmente, la NFC ha conquistado el mundo; y lo m\u00e1s probable es que est\u00e9 presente en tu vida, incluso si no te das cuenta. En Brasil, su \u201cinauguraci\u00f3n silenciosa\u201d se celebr\u00f3 en tarjetas de transporte p\u00fablico. <\/span><span style=\"font-weight: 400;\">Estas contienen un chip NFC est\u00e1ndar Mifare en su interior que permite a los usuarios recargarlas  usando un tel\u00e9fono m\u00f3vil que tenga un lector incorporado. M\u00e1s recientemente, las tarjetas de cr\u00e9dito tambi\u00e9n han adoptado este est\u00e1ndar para permitir pagos sin contacto.<\/span><\/p>\n<h2><b>Tocaste, pagaste... O robaste<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Y es justo ah\u00ed donde las cosas se complican. Los pagos sin contacto (contactless) se volvieron tremendamente populares durante los per\u00edodos m\u00e1s cr\u00edticos de la pandemia del nuevo coronavirus (SARS-CoV-2), ya que era mucho m\u00e1s seguro para la persona que iba a pagar sostener su tarjeta de cr\u00e9dito cerca de la m\u00e1quina que permitir que el vendedor la tomara en sus manos. Los brasile\u00f1os \u2014as\u00ed como muchos ciudadanos de todo el mundo\u2014 se acostumbraron r\u00e1pidamente a esa facilidad. Lo que pocas personas saben es que, as\u00ed como el NFC puede ser muy \u00fatil, tambi\u00e9n conlleva riesgos para la seguridad.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">No es dif\u00edcil, para un ciberdelincuente, robar dinero de tu cuenta utilizando un dispositivo creado para ese prop\u00f3sito. \u00c9l solo necesita que est\u00e9s en un <a href=\"https:\/\/tmp-hackerrangers.siteup.dev\/es\/cybersecurity\/carnaval-en-linea-y-fuera-de-linea-de-forma-segura-echa-un-vistazo-a-los-consejos-esenciales-para-protegerte\/\">lugar concurrido<\/a>para acercarse a ti, deslizar el lector malicioso en tu bolsillo y \u201csolicitar\u201d el chip de la tarjeta para enviarle dinero, como una m\u00e1quina expendedora com\u00fan. Es justamente por eso que los expertos en seguridad recomiendan que desactives el pago por aproximaci\u00f3n si pretendes asistir a lugares concurridos, como una fiesta, por ejemplo.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Pero los golpes no terminan por ah\u00ed. Debido a la rapidez y aparente practicidad de los pagos sin contacto, es com\u00fan que las personas, al momento de realizar una compra, ni siquiera verifiquen si el valor que se les est\u00e1 cobrando por medio de la m\u00e1quina es el correcto. Se han recibido muchas quejas de clientes de aplicaciones de entregas a domicilio que fueron enga\u00f1ados por personas malintencionadas (algunas llegan a romper intencionalmente la pantalla de la m\u00e1quina para cobrar valores superiores a los debidos a los clientes desatentos).<\/span><\/p>\n<h2><b>No conviene bajar la guardia<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Como comentamos, aunque sea sumamente popular en Asia, la tecnolog\u00eda NFC todav\u00eda es nueva en Brasil y es normal, entonces, que los ciudadanos no est\u00e9n acostumbrados a tomar las precauciones del caso. Si optas por pagos sin contacto, verifica siempre el valor que se te est\u00e1 cobrando por medio de la m\u00e1quina antes de acercar tu tarjeta y nunca aceptes realizar transferencias por medio de dispositivos que est\u00e9n \"rotos\" o cuya pantalla presente aver\u00edas que dificulten la lectura. Pide siempre tu comprobante de pago para verificar el valor cobrado.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Con respecto a los \u201clectores ladrones\u201d, la recomendaci\u00f3n es simplemente la de desactivar el pago sin contacto si sabes que vas a pasar por lugares de mucho movimiento (puedes hacerlo usando la aplicaci\u00f3n de tu banco). Si tener que activar y desactivar esta funci\u00f3n todo el tiempo te resulta muy molesto, entonces vale la pena que inviertas en un tarjetero antirrobo NFC: est\u00e1n hechos con un recubrimiento especial de aluminio que impide la comunicaci\u00f3n entre el chip y los lectores. Estos tarjeteros ya se encuentran f\u00e1cilmente en las tiendas online y tienen precios accesibles.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Por \u00faltimo, tambi\u00e9n te conviene tener cuidado con tu tel\u00e9fono m\u00f3vil equipado con antena NFC. Mant\u00e9n la funci\u00f3n desactivada hasta que necesites usarla, ya que puedes leer involuntariamente una etiqueta que activar\u00e1 la descarga de malware en tu dispositivo m\u00f3vil. Este es un escenario perfectamente posible y aterrador, ya que, como ya lo hemos se\u00f1alado, los chips se pueden camuflar en cualquier cosa: un llavero, un adhesivo o incluso el anillo de alguien que te pide prestado tu smartphone por unos segundos.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>You&#8217;ve certainly heard \u2014 or read somewhere \u2014 about NFC technology, but not everyone knows exactly what it is or how it works. First of all, this may come as a surprise to many: although it has only become popular in Brazil in recent years, the NFC standard (an acronym for Near-Field Communications) is not [&hellip;]<\/p>\n","protected":false},"author":4009,"featured_media":2672,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"content-type":"","inline_featured_image":false,"footnotes":""},"categories":[46],"tags":[157,90,64,160,161],"class_list":["post-2671","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-awareness","tag-awarenesss","tag-cybercrime","tag-cybersecurity","tag-nfc","tag-payment"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What is NFC and what precautions should you take with this technology? | Hacker Rangers<\/title>\n<meta name=\"description\" content=\"What is NFC and how does it work? 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