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Wanna protect your data center? Take tips from the US Secret Service

Velv
Boffin

As mentioned, implementing on to an existing legacy network is a massive undertaking that will result in outages.

However it should be done for all new deployments. Start locked down and only open what must be opened.

One other caveat - make sure everyone involved fully understands the concepts, rationale and technical requirements otherwise you'll end up with a broken network that's a nightmare to maintain.

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