{"id":5055,"date":"2026-08-13T23:55:35","date_gmt":"2026-08-13T21:55:35","guid":{"rendered":"http:\/\/firewallsolutions.dk\/?page_id=5055"},"modified":"2026-09-16T16:21:28","modified_gmt":"2026-09-16T14:21:28","slug":"firewall-og-nis2","status":"publish","type":"page","link":"https:\/\/firewallsolutions.dk\/en\/firewall-og-nis2\/","title":{"rendered":"Firewall og NIS2"},"content":{"rendered":"
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NIS2 OG NETV\u00c6RKSSIKKERHED<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Firewall og NIS2: hvor teknikken m\u00f8der m\u00f8der lovkravene<\/span><\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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NIS2 n\u00e6vner ikke ordet “firewall” en eneste gang. Alligevel er den et af de mest direkte v\u00e6rkt\u00f8jer til at opfylde kravene, hvis den er sat rigtigt op.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Loven stiller krav til\u00a0processer og risikostyring<\/strong>, ikke til bestemte produkter. Derfor findes der ikke “NIS2-godkendte” firewalls. Der findes firewalls, der g\u00f8r det nemmere at dokumentere, at kravene er opfyldt.<\/p><\/div>

\u00a0<\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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1. juli 2025\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Dansk NIS2-lov tr\u00e5dte i kraft\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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~6.000\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Omfattede danske enheder\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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timer<\/h2>\t\t\t
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Frist for tidlig varsling\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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10 mio. \u20ac\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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B\u00f8deloft for v\u00e6sentlige enheder\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Hvilke krav r\u00f8rer firewallen ved?\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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NIS2-direktivet lister ti minimumsforanstaltninger. Firewallen er ikke svaret p\u00e5 dem alle, men den er en central del af svaret p\u00e5 disse.<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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\n\t\t\t\t\tKrav i NIS2<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tFirewallens rolle\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tSikkerhed i net- og informationssystemer\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tSegmentering og zoneopdeling, s\u00e5 et brud \u00e9t sted ikke spreder sig videre\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tH\u00e5ndtering af h\u00e6ndelser\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tIPS\/IDS, alarmering og logdata, der kan bruges til underretningen\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tAdgangskontrol og multifaktorgodkendelse\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tAutentificeret administratoradgang og MFA p\u00e5 VPN-forbindelser\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tKryptografi\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tIPsec- og SSL-VPN, TLS-inspektion af trafik\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tForsyningsk\u00e6desikkerhed<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tKontrolleret og tidsbegr\u00e6nset fjernadgang for leverand\u00f8rer og serviceteknikere\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tDriftskontinuitet<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tHigh availability, failover og backup af konfiguration\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tVurdering af foranstaltningernes effektivitet\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tRapporter og logs, der kan fremvises ved tilsyn\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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\n\t\t\t\t\tKrav i NIS2<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tFirewallens rolle\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tSikkerhed i net- og informationssystemer\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tSegmentering og zoneopdeling, s\u00e5 et brud \u00e9t sted ikke spreder sig videre\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tH\u00e5ndtering af h\u00e6ndelser\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tIPS\/IDS, alarmering og logdata, der kan bruges til underretningen\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tAdgangskontrol og multifaktorgodkendelse\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tAutentificeret administratoradgang og MFA p\u00e5 VPN-forbindelser\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tKryptografi\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tIPsec- og SSL-VPN, TLS-inspektion af trafik\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tForsyningsk\u00e6desikkerhed<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tKontrolleret og tidsbegr\u00e6nset fjernadgang for leverand\u00f8rer og serviceteknikere\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tDriftskontinuitet<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tHigh availability, failover og backup af konfiguration\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tVurdering af foranstaltningernes effektivitet\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\tRapporter og logs, der kan fremvises ved tilsyn\n<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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UNDERRETNINGSPLIGTEN<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Tre frister, du ikke kan overholde uden logs<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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\n\t\t\t\t\n\t\t\t\t<\/i>\t\t\t\t<\/span>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t\t
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\n\t\t\t\t\t\t\n\t\t\t\t\t\t\tDette er en overskrift\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/h3>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t

\n\t\t\t\t\t\tLorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.\t\t\t\t\t<\/p>\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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\n\t\t\t\t\n\t\t\t\t<\/i>\t\t\t\t<\/span>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t\t
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\n\t\t\t\t\t\t\n\t\t\t\t\t\t\tDette er en overskrift\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/h3>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t

\n\t\t\t\t\t\tLorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.\t\t\t\t\t<\/p>\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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\n\t\t\t\t\n\t\t\t\t<\/i>\t\t\t\t<\/span>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t\t
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\n\t\t\t\t\t\t\n\t\t\t\t\t\t\tDette er en overskrift\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/h3>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t

\n\t\t\t\t\t\tLorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.\t\t\t\t\t<\/p>\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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LAD OS V\u00c6RE PR\u00c6CISE<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Tre ting, NIS2 ikke kr\u00e6ver<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Der bliver solgt en del p\u00e5 misforst\u00e5elser i \u00f8jeblikket. Her er de mest udbredte.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\n\t\t\t\t\t\t\tFirewallen skal v\u00e6re NIS2-certificeret\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/h3>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t

\n\t\t\t\t\t\tDer findes ingen NIS2-certificering af produkter. Loven certificerer ikke udstyr \u2014 den stiller krav til organisationens risikostyring. En leverand\u00f8r, der p\u00e5st\u00e5r andet, s\u00e6lger p\u00e5 en misforst\u00e5else.\n\n\t\t\t\t\t<\/p>\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\n\t\t\t\t\t\t\tVi skal skifte alt vores udstyr ud\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/h3>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t

\n\t\t\t\t\t\tKravene er risikobaserede. Nogle organisationer kan n\u00e5 langt med at omkonfigurere, segmentere og f\u00e5 styr p\u00e5 logning p\u00e5 eksisterende udstyr. Udskiftning bliver f\u00f8rst relevant, n\u00e5r udstyret ikke kan levere det, risikovurderingen kr\u00e6ver.\n\n\t\t\t\t\t<\/p>\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\n\t\t\t\t\t\t\tDet er IT-afdelingens ansvar\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/h3>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t

\n\t\t\t\t\t\tLoven placerer ansvaret hos ledelsen. Ledelsesmedlemmer skal godkende foranstaltningerne, f\u00f8re tilsyn med dem og gennemg\u00e5 uddannelse \u2014 og kan i s\u00e6rlige tilf\u00e6lde p\u00e5l\u00e6gges personlige sanktioner.\n\n\t\t\t\t\t<\/p>\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Ofte stillede sp\u00f8rgsm\u00e5l\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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NIS2 og firewall<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/polygon><\/svg><\/span>\n\t\t\t\t\t\t\t\t<\/rect><\/rect><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\tN\u00e6vner NIS2 firewalls direkte?<\/a>\n\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t

Nej. Hverken direktivet eller den danske NIS2-lov n\u00e6vner firewalls som et krav. Loven beskriver foranstaltninger som netv\u00e6rkssikkerhed, adgangskontrol, kryptografi og h\u00e6ndelsesh\u00e5ndtering \u2014 og firewallen er et af de v\u00e6rkt\u00f8jer, der bruges til at opfylde dem.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/polygon><\/svg><\/span>\n\t\t\t\t\t\t\t\t<\/rect><\/rect><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\tEr min virksomhed omfattet af NIS2?<\/a>\n\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t

Det afh\u00e6nger af sektor og st\u00f8rrelse. Omkring 6.000 danske enheder er omfattet p\u00e5 tv\u00e6rs af cirka 15 sektorer, opdelt i v\u00e6sentlige og vigtige enheder. Styrelsen for Samfundssikkerhed har udgivet et v\u00e6rkt\u00f8j til at vurdere det.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/polygon><\/svg><\/span>\n\t\t\t\t\t\t\t\t<\/rect><\/rect><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\tHvorn\u00e5r tr\u00e5dte den danske NIS2-lov i kraft?<\/a>\n\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t

Den 1. juli 2025, uden overgangsperiode. Omfattede enheder skulle registrere sig senest 1. oktober 2025. H\u00e5ndh\u00e6velsen er trappet op i l\u00f8bet af 2026, hvor tilsynsmyndighederne bev\u00e6ger sig fra vejledning til kontrol.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/polygon><\/svg><\/span>\n\t\t\t\t\t\t\t\t<\/rect><\/rect><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\tHvad koster det at overtr\u00e6de reglerne?<\/a>\n\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t

For v\u00e6sentlige enheder kan b\u00f8derne n\u00e5 10 mio. euro eller 2 % af den globale \u00e5rsoms\u00e6tning. For vigtige enheder er loftet 7 mio. euro eller 1,4 % \u2014 alt efter hvad der er h\u00f8jest.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/polygon><\/svg><\/span>\n\t\t\t\t\t\t\t\t<\/rect><\/rect><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\tHvor lang tid tager en segmentering?<\/a>\n\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t

Det afh\u00e6nger helt af netv\u00e6rkets nuv\u00e6rende opbygning. En kortl\u00e6gning af trafikstr\u00f8mme er f\u00f8rste skridt, og den kan typisk gennemf\u00f8res p\u00e5 f\u00e5 uger. Selve implementeringen sker som regel i etaper, s\u00e5 driften ikke afbrydes.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Skal vi kigge p\u00e5 jeres netv\u00e6rk?\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Vi gennemg\u00e5r jeres nuv\u00e6rende ops\u00e6tning og peger p\u00e5, hvor der er reelle huller i forhold til kravene, uden forpligtelser.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tBook en gennemgang<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tkontakt os<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Denne side er generel information og udg\u00f8r ikke juridisk r\u00e5dgivning. Vurderingen af, om jeres organisation er omfattet af NIS2-loven, og hvilke foranstaltninger der er tilstr\u00e6kkelige, beror p\u00e5 en konkret vurdering.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

NIS2 OG NETV\u00c6RKSSIKKERHED Firewall og NIS2: hvor teknikken m\u00f8der m\u00f8der lovkravene NIS2 n\u00e6vner ikke ordet “firewall” en eneste gang. Alligevel er den et af de mest direkte v\u00e6rkt\u00f8jer til at opfylde kravene, hvis den er sat rigtigt op. Loven stiller krav til\u00a0processer og risikostyring, ikke til bestemte produkter. Derfor findes der ikke “NIS2-godkendte” firewalls. Der […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"inline_featured_image":false,"footnotes":""},"class_list":["post-5055","page","type-page","status-publish","hentry"],"yoast_head":"\nFirewall og NIS2 - Firewall solutions<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Firewall og NIS2 - Firewall solutions\" \/>\n<meta property=\"og:description\" content=\"NIS2 OG NETV\u00c6RKSSIKKERHED Firewall og NIS2: hvor teknikken m\u00f8der m\u00f8der lovkravene NIS2 n\u00e6vner ikke ordet “firewall” en eneste gang. Alligevel er den et af de mest direkte v\u00e6rkt\u00f8jer til at opfylde kravene, hvis den er sat rigtigt op. 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