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ZTNA - Zero Trust Network Access

Zero Trust Nettverkssikkerhet (ZTNA) er et sikkerhetsrammeverk som gir tilgang til applikasjoner og data basert på streng identitetsverifisering og kontinuerlig autentisering, i stedet for å stole på brukere eller enheter som standard.

ZTNA fungerer etter prinsippet "aldri stole på, alltid verifisere", noe som sikrer at brukerne bare får tilgang til de spesifikke ressursene de trenger, og ikke noe mer. I motsetning til tradisjonelle VPN-er som gir bred nettverkstilgang, minimerer ZTNA risikoen ved å begrense tilgangen til individuelle applikasjoner i stedet for hele nettverk.

Viktige funksjoner i ZTNA inkluderer

  • Verifisering av brukere og enheter før tilgang innvilges
  • Begrensning av tilgang til spesifikke applikasjoner, ikke hele nettverket
  • Kontinuerlig overvåking og vurdering av tillitsnivåer

Implementering av ZTNA innebærer:

  • Bruk av IAM-løsninger (Identitets- og tilgangsstyring)
  • Håndheve retningslinjer for tilgang med færrest mulig privilegier
  • Overvåking av nettverksaktiviteter for å avdekke trusler

ZTNA forbedrer sikkerheten ved å redusere angrepsflaten og sørge for at brukerne bare får tilgang til ressurser de eksplisitt er autorisert for.

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