diff --git a/02-historia.html b/02-historia.html index ba20279..fc420d6 100644 --- a/02-historia.html +++ b/02-historia.html @@ -215,7 +215,7 @@ /* hide footer and pagination */display:none}div#\:\$p>svg>foreignObject>section.last-slide a,div#\:\$p>svg>foreignObject>section.last-slide p{color:#111} /* You can add custom style here. VSCode supports this. Other editor might need these custom code in - the YAML header: section: | */div#\:\$p>svg>foreignObject>section[data-marpit-scope-Mcr0NGyT] th{background-color:#ddd;color:black;font-weight:normal;border:0} + the YAML header: section: | */div#\:\$p>svg>foreignObject>section[data-marpit-scope-kLhJIvAx] th{background-color:#ddd;color:black;font-weight:normal;border:0} /*td:first-child { background-color: var(--main-color);} th:first-child { background-color: var(--main-color);}*/div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]{columns:initial!important;display:block!important;padding:0!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]:after,div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]:before,div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=content]:after,div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=content]:before{display:none!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container]{all:initial;display:flex;flex-direction:row;height:100%;overflow:hidden;width:100%}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container][data-marpit-advanced-background-direction=vertical]{flex-direction:column}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background][data-marpit-advanced-background-split]>div[data-marpit-advanced-background-container]{width:var(--marpit-advanced-background-split,50%)}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background][data-marpit-advanced-background-split=right]>div[data-marpit-advanced-background-container]{margin-left:calc(100% - var(--marpit-advanced-background-split, 50%))}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container]>figure{all:initial;background-position:center;background-repeat:no-repeat;background-size:cover;flex:auto;margin:0}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container]>figure>figcaption{position:absolute;border:0;clip:rect(0,0,0,0);height:1px;margin:-1px;overflow:hidden;padding:0;white-space:nowrap;width:1px}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=content],div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=pseudo]{background:transparent!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=pseudo],div#\:\$p>svg[data-marpit-svg]>foreignObject[data-marpit-advanced-background=pseudo]{pointer-events:none!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background-split]{width:100%;height:100%}

Historia de la criptografía

@@ -273,7 +273,7 @@

Mecanismos clásicos de cifrado

https://medium.com/@maitri.51/securing-the-digital-realm-a-closer-look-at-s-boxes-and-p-boxes-in-encryption-b14b35f7e139

-
+
Criptografía clásica

Sustitución monoalfabética:

diff --git a/03-simetrica.html b/03-simetrica.html index c2e5a07..318356f 100644 --- a/03-simetrica.html +++ b/03-simetrica.html @@ -217,7 +217,7 @@ Other editor might need these custom code in the YAML header: section: | */ /* section header { display: none; } */ -/* section footer { display: none; } */div#\:\$p>svg>foreignObject>section[data-marpit-scope-eOfZbrou]{font-size:180%}div#\:\$p>svg>foreignObject>section[data-marpit-scope-eOfZbrou]{--marpit-root-font-size:180%}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]{columns:initial!important;display:block!important;padding:0!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]:after,div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]:before,div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=content]:after,div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=content]:before{display:none!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container]{all:initial;display:flex;flex-direction:row;height:100%;overflow:hidden;width:100%}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container][data-marpit-advanced-background-direction=vertical]{flex-direction:column}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background][data-marpit-advanced-background-split]>div[data-marpit-advanced-background-container]{width:var(--marpit-advanced-background-split,50%)}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background][data-marpit-advanced-background-split=right]>div[data-marpit-advanced-background-container]{margin-left:calc(100% - var(--marpit-advanced-background-split, 50%))}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container]>figure{all:initial;background-position:center;background-repeat:no-repeat;background-size:cover;flex:auto;margin:0}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container]>figure>figcaption{position:absolute;border:0;clip:rect(0,0,0,0);height:1px;margin:-1px;overflow:hidden;padding:0;white-space:nowrap;width:1px}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=content],div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=pseudo]{background:transparent!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=pseudo],div#\:\$p>svg[data-marpit-svg]>foreignObject[data-marpit-advanced-background=pseudo]{pointer-events:none!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background-split]{width:100%;height:100%}
+/* section footer { display: none; } */div#\:\$p>svg>foreignObject>section[data-marpit-scope-sQfu5u3q]{font-size:180%}div#\:\$p>svg>foreignObject>section[data-marpit-scope-sQfu5u3q]{--marpit-root-font-size:180%}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]{columns:initial!important;display:block!important;padding:0!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]:after,div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]:before,div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=content]:after,div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=content]:before{display:none!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container]{all:initial;display:flex;flex-direction:row;height:100%;overflow:hidden;width:100%}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container][data-marpit-advanced-background-direction=vertical]{flex-direction:column}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background][data-marpit-advanced-background-split]>div[data-marpit-advanced-background-container]{width:var(--marpit-advanced-background-split,50%)}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background][data-marpit-advanced-background-split=right]>div[data-marpit-advanced-background-container]{margin-left:calc(100% - var(--marpit-advanced-background-split, 50%))}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container]>figure{all:initial;background-position:center;background-repeat:no-repeat;background-size:cover;flex:auto;margin:0}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container]>figure>figcaption{position:absolute;border:0;clip:rect(0,0,0,0);height:1px;margin:-1px;overflow:hidden;padding:0;white-space:nowrap;width:1px}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=content],div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=pseudo]{background:transparent!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=pseudo],div#\:\$p>svg[data-marpit-svg]>foreignObject[data-marpit-advanced-background=pseudo]{pointer-events:none!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background-split]{width:100%;height:100%}

Cifrado simétrico o de clave privada

AES y ChaCha

@@ -751,7 +751,7 @@

Vulnerabilidades

Cifrado de bloque

Cifrado de bloque

-
+
Cifrado de bloque

El cifrado de bloque es lo que hacía el cifrado Vignère: cortar el texto en claro en bloques de la misma longitud de la clave y cifrar cada uno de los bloques

diff --git a/07-pki.html b/07-pki.html index b1f66f6..16c2eb8 100644 --- a/07-pki.html +++ b/07-pki.html @@ -217,23 +217,23 @@ Other editor might need these custom code in the YAML header: section: | */ /* section header { display: none; } */ -/* section footer { display: none; } */div#\:\$p>svg>foreignObject>section[data-marpit-scope-98qSJWoQ] p{font-size:150%}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]{columns:initial!important;display:block!important;padding:0!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]:after,div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]:before,div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=content]:after,div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=content]:before{display:none!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container]{all:initial;display:flex;flex-direction:row;height:100%;overflow:hidden;width:100%}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container][data-marpit-advanced-background-direction=vertical]{flex-direction:column}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background][data-marpit-advanced-background-split]>div[data-marpit-advanced-background-container]{width:var(--marpit-advanced-background-split,50%)}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background][data-marpit-advanced-background-split=right]>div[data-marpit-advanced-background-container]{margin-left:calc(100% - var(--marpit-advanced-background-split, 50%))}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container]>figure{all:initial;background-position:center;background-repeat:no-repeat;background-size:cover;flex:auto;margin:0}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container]>figure>figcaption{position:absolute;border:0;clip:rect(0,0,0,0);height:1px;margin:-1px;overflow:hidden;padding:0;white-space:nowrap;width:1px}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=content],div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=pseudo]{background:transparent!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=pseudo],div#\:\$p>svg[data-marpit-svg]>foreignObject[data-marpit-advanced-background=pseudo]{pointer-events:none!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background-split]{width:100%;height:100%}
+/* section footer { display: none; } */div#\:\$p>svg>foreignObject>section[data-marpit-scope-57VsbNjn] p{font-size:150%}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]{columns:initial!important;display:block!important;padding:0!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]:after,div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]:before,div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=content]:after,div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=content]:before{display:none!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container]{all:initial;display:flex;flex-direction:row;height:100%;overflow:hidden;width:100%}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container][data-marpit-advanced-background-direction=vertical]{flex-direction:column}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background][data-marpit-advanced-background-split]>div[data-marpit-advanced-background-container]{width:var(--marpit-advanced-background-split,50%)}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background][data-marpit-advanced-background-split=right]>div[data-marpit-advanced-background-container]{margin-left:calc(100% - var(--marpit-advanced-background-split, 50%))}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container]>figure{all:initial;background-position:center;background-repeat:no-repeat;background-size:cover;flex:auto;margin:0}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container]>figure>figcaption{position:absolute;border:0;clip:rect(0,0,0,0);height:1px;margin:-1px;overflow:hidden;padding:0;white-space:nowrap;width:1px}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=content],div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=pseudo]{background:transparent!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=pseudo],div#\:\$p>svg[data-marpit-svg]>foreignObject[data-marpit-advanced-background=pseudo]{pointer-events:none!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background-split]{width:100%;height:100%}

TLS y Public Key Infrastructure

Juan Vera del Campo - juan.vera@professor.universidadviu.com

-
+

Hoy hablamos de...

  1. Criptografía híbrida
  2. Gestión de claves públicas
    3. -
  3. Resumen y referencias
    4. +
  4. Resumen y referencias
-
+

Recordatorio: cifrado asimétrico

center

@@ -245,7 +245,7 @@

Recordatorio: cifrado asimétrico<

-
+

Problemas cifrado asimétrico

    @@ -256,13 +256,13 @@

    Problemas cifrado asimétrico

    Hoy veremos las soluciones para estos problemas: cifrado híbrido y certificados

-
+

Criptografía híbrida

O cómo combinar los ladrillos que ya hemos visto para construir protocolos

-
+

Definición

  • La criptografía simétrica permite cifrar muy rápidamente
    • @@ -282,7 +282,7 @@

    Definición

-
+

Firma digital: proceso

  • Los algoritmos como RSA solo cifran números enteros de una longitud igual a la clave. Por ejemplo, 4096 bits.
    • @@ -301,13 +301,13 @@

    Firma digital: proceso

-
+

Cifrando el hash de un mensaje con nuestra clave privada, aseguramos que ese mensaje lo hemos enviado nosotros y cualquier puede verificarlo

center

Firma digital de un mensaje = cifrado del hash de un mensaje con mi clave privada

-
+

Protocolo Diffie-Hellman, autenticado

Igual que el D-H que ya conocemos, pero firmando los mensajes:

@@ -348,7 +348,7 @@

Protocolo Diffie-Hellman, autentic

-
+

Cifrado híbrido: HTTPS

  1. Alice y Bob negocian los parámetros de seguridad
    2. @@ -359,7 +359,7 @@

    Cifrado híbrido: HTTPS

    Esto es el protocolo TLS

-
+

Ejemplo configuración TLS (1)

@@ -371,7 +371,7 @@

Ejemplo configuración TLS (1)

-
+

Ejemplo configuración TLS (2)

@@ -382,7 +382,7 @@

Ejemplo configuración TLS (2)

-
+

Qué sabemos hacer

  • Sabemos enviar mensajes con confidencialidad: criptografía simétrica @@ -404,32 +404,32 @@

    Qué sabemos hacer

-
+

Una conexión HTTPS / TLS no quiere decir "confía en mí". Quiere decir "nadie más puede acceder". Podrías estar recibiendo la llamada de un atacante, y que fuese privada.

  • Scott Hanselman
-
+

Hemos cambiado el problema de

cómo compartir claves simétricas

por el de

cómo compartir claves públicas (asimétricas)

-
+

Gestión de claves públicas

Certificados electrónicos

-
+

Ataque man in the middle

center

-
+

El problema de la confianza

¿Cómo conseguimos la clave pública de los demás?

@@ -450,7 +450,7 @@

El problema de la confianza

-
+

Gestión manual: SSH

    @@ -470,7 +470,7 @@

    Gestión manual: SSH

-
+
juanvi@debian:~/.ssh$ ls
 juanvi@debian:~/.ssh$ ssh-keygen -f clave1 -t rsa
 Generating public/private rsa key pair.
@@ -501,11 +501,11 @@ 
Gestión manual: SSH
-
+

center

-
+

Gestión con certificados

Alice crea un archivo con su identidad y su clave pública

@@ -514,7 +514,7 @@

Gestión con certificados

Alice puede ahora distribuir su certificado, que incluye su identidad y clave pública a todos los que confíen en esa TTP

-
+

TTP: Tercera parte de confianza

Ya no tenemos que conseguir la clave pública de cualquier persona, solo la de la TTP (Trusted Third Party) y verificar que las claves públicas de los certificados que nos presenten estén firmadas por la TTP

La TTP puede ser:

@@ -524,24 +524,24 @@

TTP: Tercera parte de confianza

-
+

PGP: Pretty Good Privacy

En PGP podemos firmar las claves de conocidos nosotros mismos si nos las han pasado de forma segura

...y ellos también pueden hacer lo mismo, permitiendo alzcanzar un paso más

Nota: PGP tiene una versión de libre distribución llamada GPG derivada de la rfc4880 (OpenPGP)

-
+

center

Esto es un ejemplo de la interfaz de Mailvelope (GMail, comercial)

-
+

center

Esto es un ejemplo de la interfaz de KGPG (Linux)

-
+

PGP: grados de seguridad

Los amigos puedes avalar otros certificados

@@ -550,7 +550,7 @@

PGP: grados de seguridad

A partir de unos cuantos certificados el nivel de seguridad deja de ser aceptable

-
+

Dónde conseguir claves públicas

-
+

Problema de PGP

    @@ -568,7 +568,7 @@

    Problema de PGP

-
+

PKI: Public Key Infrastructure

Idea: confiar en unas pocas TTPs que gestionen todos los certificados de Internet

@@ -581,7 +581,7 @@

PKI: Public Key Infrastructure

Instalar una nueva CA en un PC es un proceso excepcional

-
+

Cadena de confianza, intermediarios y raíces

Normalmente hay una "cadena de confianza" con varios eslabones

center

@@ -590,11 +590,11 @@

Cadena de confianza, i

-
+

center

-
+

Jerarquía de Autoridades de Certificación

  • CA raíz: sólo emite certificados para CA subordinadas y "revocaciones" @@ -612,13 +612,13 @@

    Jerarquía de Autor

-
+

Autoridades de certificación raíz

Instaladas con el sistema operativo o el navegador

En la imagen, Root CAs instaladas en mi Firefox

-
+

Revocación

Los certificados tienen una validez limitada en el tiempo, pero es posible que su contenido deje de ser válido antes:

    @@ -628,7 +628,7 @@

    Revocación

    Si esto pasa, hace falta comunicarlo a la CA siguiendo sus procedimientos específicos

-
+

¿Cómo sabemos si un certificado ha sido revocado?

La CA se encarga de:

    @@ -638,11 +638,24 @@

    ¿Cómo sabe

    Es tu responsabilidad comprobar si los certificados son válidos

-
+
+

Revocación de autoridades de certificación

+ +

Ocasionalmente, incluso las autoridades de certificación tienen que recovarse

+

Upcoming change in Chrome 127 and higher: TLS server authentication
+certificates validating to the following Entrust roots whose earliest Signed
+Certificate Timestamp (SCT) is dated after October 31, 2024, will no longer be
+trusted by default.

+
+

https://security.googleblog.com/2024/06/sustaining-digital-certificate-security.html

+
+ +
+

Resumen y referencias

-
+

Resumen

  • Hemos reducido el problema de la seguridad en un problema de gestión de claves públicas
    • @@ -663,7 +676,7 @@

    Resumen

-
+

Referencias

-
  • IZENPE sustituirá los certificados electrónicos afectados por "ROCA", la amenaza mundial a los chips de algunas tarjetas de identificación
  • Diferencias entre firma digital, electronica, digitalizada y certificado digital. Autónomos y Pymes
  • Create your own Certificate Authority (CA) using OpenSSL
    • -
    +

    Anexo recomendado: Protocolo TLS

    Continúa en: Autenticación

    -
    +

    ¡Gracias!

    @@ -735,5 +747,12 @@

    ¡Gracias!

    - Certificado raíz - Lista de revocación -Prueba también con otras páginas web

    \ No newline at end of file diff --git a/08-ransomware.html b/08-ransomware.html index 8fd079e..e0c30d3 100644 --- a/08-ransomware.html +++ b/08-ransomware.html @@ -217,7 +217,7 @@ Other editor might need these custom code in the YAML header: section: | */ /* section header { display: none; } */ -/* section footer { display: none; } */div#\:\$p>svg>foreignObject>section[data-marpit-scope-qmRkeWvv] blockquote a{background:#000a;color:white;padding:0.5em}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]{columns:initial!important;display:block!important;padding:0!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]:after,div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]:before,div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=content]:after,div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=content]:before{display:none!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container]{all:initial;display:flex;flex-direction:row;height:100%;overflow:hidden;width:100%}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container][data-marpit-advanced-background-direction=vertical]{flex-direction:column}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background][data-marpit-advanced-background-split]>div[data-marpit-advanced-background-container]{width:var(--marpit-advanced-background-split,50%)}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background][data-marpit-advanced-background-split=right]>div[data-marpit-advanced-background-container]{margin-left:calc(100% - var(--marpit-advanced-background-split, 50%))}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container]>figure{all:initial;background-position:center;background-repeat:no-repeat;background-size:cover;flex:auto;margin:0}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container]>figure>figcaption{position:absolute;border:0;clip:rect(0,0,0,0);height:1px;margin:-1px;overflow:hidden;padding:0;white-space:nowrap;width:1px}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=content],div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=pseudo]{background:transparent!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=pseudo],div#\:\$p>svg[data-marpit-svg]>foreignObject[data-marpit-advanced-background=pseudo]{pointer-events:none!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background-split]{width:100%;height:100%}
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    Cybersec and Ransomware

    Juan Vera del Campo - juan.vera@professor.universidadviu.com

    @@ -236,12 +236,12 @@

    Hoy hablamos de...

    Incident Response

    -