http://h7isucmawckzflxhipflydxvxpaytk5fozfk5immffg66rhboc74yxyd.onion/doku.php?id=securing_your_devices&do=edit
====Don't charge from public USB ports ====
The USB protocol carries both data and power so, when you plug your phone into a public USB port (e.g. at a café, train, or airport charging station), a malicious actor might be trying to connect to your device, as well as recharge it.
===Use your own plug or battery pack ===
The safest thing to do is to charge only using your own plug / battery pack.
===Use a USB data blocker ===
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