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<blockquote data-quote="Ember1205" data-source="post: 1710058" data-attributes="member: 374272">Think of a firewall like you would a security guard in a building. When someone approaches the building, the security guard stops them to understand why they want to come in. If they have no business being there (no one asked them to come), the guard turns them away. If they WERE specifically summoned (someone from the fourth floor ordered pizza delivery and notified the security guard), then they are allowed to enter. If the security guard doesn't have an entry on his list for who is supposed to be coming to the office building, they aren't getting in (No one gets in to see The Wizard! Not no one, no no how!)FileVault &quot;locks up&quot; the data on your hard drive so that no one can get at it if they are able to get physical access to your hard drive. Folks like myself that use a laptop and travel for work risk losing the laptop (physically). If that happens, someone could try and break into my laptop by guessing my password. If they can't figure out my password but want my data, they can boot from their own drive and &quot;mount&quot; the filesystem from my laptop. If the drive is encrypted, they can't access any of the data on the drive.I won't ever bother encrypting the drive on my desktop computer at my home because no one is going to get physical access to the drive (there isn't anything on there that's sensitive anyway).</blockquote>

[QUOTE="Ember1205, post: 1710058, member: 374272"] Think of a firewall like you would a security guard in a building. When someone approaches the building, the security guard stops them to understand why they want to come in. If they have no business being there (no one asked them to come), the guard turns them away. If they WERE specifically summoned (someone from the fourth floor ordered pizza delivery and notified the security guard), then they are allowed to enter. If the security guard doesn't have an entry on his list for who is supposed to be coming to the office building, they aren't getting in (No one gets in to see The Wizard! Not no one, no no how!) FileVault "locks up" the data on your hard drive so that no one can get at it if they are able to get physical access to your hard drive. Folks like myself that use a laptop and travel for work risk losing the laptop (physically). If that happens, someone could try and break into my laptop by guessing my password. If they can't figure out my password but want my data, they can boot from their own drive and "mount" the filesystem from my laptop. If the drive is encrypted, they can't access any of the data on the drive. I won't ever bother encrypting the drive on my desktop computer at my home because no one is going to get physical access to the drive (there isn't anything on there that's sensitive anyway). [/QUOTE]

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