Update all Templates over Tor

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Answered here:

Update check without sys-whonix

Downloading dom0 and template updates over Tor can provide specific security benefits by making it more difficult for you to be subject to targeted attacks involving malicious or withheld packages. For example: An attacker may have gained access to an authentic upstream package signing key. He can use this key to sign a malicious package that is intended only for you. If you download updates using Tor, you force him to distribute the malicious package to everyone instead of only to you, which…