Public USB charging ports are handy, but they also ask you to trust something you cannot see.
That port in an airport, hotel, café, car, train, hospital, or shopping centre might be fine. It might also have been tampered with.
That is where a USB data blocker comes in.
You plug your normal charging cable into the data blocker, then plug the blocker into the USB port. It only allows power to pass through and stops data from passing between the port and your phone.
It is a simple bit of kit, but a useful one, especially when you are away from home and need a charge without giving an unknown socket access to your device.
It is not magic, and it does not replace good phone security, updates, or common sense. But for travel, public charging, and unknown USB ports, it adds a cheap physical layer of protection.
Would you use one when travelling?
https://amzn.eu/d/099HG9uO
#Privacy #Security #CyberSecurity #TravelTech #DigitalSafety #PhoneSecurity #DataProtection #SelfSovereignty
beitmenotyou1 / Michael J Burgess
npub123…58dpt
2026-05-09 11:33:30 UTC
Author Public Key
npub123j6zd6p5dls3qf2cae3dzqtrgl9vpd942jq6ge8l6mwr7muyy8qv58dptSeen on
wss://relay.nos.socialPublished at
2026-05-09 11:33:30 UTCEvent JSON
{
"id": "a0b82e8cd192edb9bcdd88bb0a3bef801cc0bc5b3fced5e9b128cb994c77cf44",
"pubkey": "5465a13741a37f08812ac77316880b1a3e5605a5aaa40d2327feb6e1fb7c210e",
"created_at": 1778326410,
"kind": 1,
"tags": [
[
"alt",
"A short note: Public USB charging ports are handy, but they also..."
],
[
"t",
"Privacy"
],
[
"t",
"privacy"
],
[
"t",
"Security"
],
[
"t",
"security"
],
[
"t",
"CyberSecurity"
],
[
"t",
"cybersecurity"
],
[
"t",
"TravelTech"
],
[
"t",
"traveltech"
],
[
"t",
"DigitalSafety"
],
[
"t",
"digitalsafety"
],
[
"t",
"PhoneSecurity"
],
[
"t",
"phonesecurity"
],
[
"t",
"DataProtection"
],
[
"t",
"dataprotection"
],
[
"t",
"SelfSovereignty"
],
[
"t",
"selfsovereignty"
],
[
"r",
"https://amzn.eu/d/099HG9uO"
],
[
"client",
"Amethyst"
]
],
"content": "Public USB charging ports are handy, but they also ask you to trust something you cannot see.\n\nThat port in an airport, hotel, café, car, train, hospital, or shopping centre might be fine. It might also have been tampered with.\n\nThat is where a USB data blocker comes in.\n\nYou plug your normal charging cable into the data blocker, then plug the blocker into the USB port. It only allows power to pass through and stops data from passing between the port and your phone.\n\nIt is a simple bit of kit, but a useful one, especially when you are away from home and need a charge without giving an unknown socket access to your device.\n\nIt is not magic, and it does not replace good phone security, updates, or common sense. But for travel, public charging, and unknown USB ports, it adds a cheap physical layer of protection.\n\nWould you use one when travelling?\n\nhttps://amzn.eu/d/099HG9uO\n\n#Privacy #Security #CyberSecurity #TravelTech #DigitalSafety #PhoneSecurity #DataProtection #SelfSovereignty",
"sig": "6359d08cd9b450328655a40193e2c8ffaee660e8e8b3e9147e995d5e8ca7d0f9794f51a8912e0695686447c48c36a0091d8a995209737ac94085105a6df9ba20"
}