{"id":37824,"date":"2025-11-07T18:05:38","date_gmt":"2025-11-07T18:05:38","guid":{"rendered":"https:\/\/fidelissecurity.com\/?post_type=glossary&p=37824"},"modified":"2025-11-07T18:06:17","modified_gmt":"2025-11-07T18:06:17","slug":"perimeter-defense","status":"publish","type":"glossary","link":"https:\/\/fidelissecurity.com\/es\/glossary\/perimeter-defense\/","title":{"rendered":"Perimeter Defense"},"content":{"rendered":"\t\t
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What is perimeter defense?<\/h2> <\/div>\n

Perimeter defense in the context of cybersecurity is all about defending your network’s boundaries.\u00a0<\/span>It’s<\/span>\u00a0much like the walls, gates, and security personnel that stand guard around a brick-and-mortar structure \u2014\u00a0<\/span>it’s<\/span> meant to keep intruders out and manage who is allowed in. In the online world, that means firewalls, intrusion prevention software, and other security mechanisms that scan and block suspicious traffic before it enters your internal network.<\/span><\/span><\/p><\/div> <\/div>\n <\/div>\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Definition: Perimeter defense security<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Perimeter defense security is the\u00a0<\/span>measures<\/span> and technologies you employ to keep a clean network boundary. The aim is straightforward: keep attackers out of your network while letting valid traffic through freely. This can include:<\/span><\/span><\/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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