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if you use a credit card you're going to want to watch this just doing a little bit of grocery shopping as you normally would except for the Spitz did you catch what just happened let's watch that again right about yeah I just got his credit card information wanna see it again watch this keep your eye on this bag and my right hand still confused let's tell you what's going on with this device and I've got tucked up in my sleeve if I wanted to I could have got people's credit card information let's head back to the studio I'm going to show you what this device is all about and how you can protect yourself so here I've got a credit card that is a contactless crowd basically the ones that you go to the shop and simply tap on the machine also known as a tap and go now watch this here is my card here is this device I simply hover over it just by holding this device near this card I've just read the card's information this device is called flipper it's a tiny portable Swiss army knife of various hacking tools with a couple of tabs I open up an NFC section on this device and read the credit card information now that you see how simple it is how do you protect yourself so it's all based around NFC near field communication and that's the keyword Nia therefore the device has to be near the credit card in order for it to activate the antenna that's built in here and the mechanism and read the information well if that's the case let's use the exact same card but this time let's put a barrier between the card and the flipper here I've got one of the Amazon packaging envelopes it's pretty thick because it's made to protect whatever is inside and take that put the card underneath and let's see if the flipper can read it Reddit no problem the next option I saw some products being advertised as radio frequency blockers and NFC blockers so of course I bought some let's see if those actually do the trick I'll have links to this in the description in case you want to check it out and in here this is the sleeve essentially it's a faraday cage that's inside here so what I'm gonna do is take my card slide it into here and now let's see if the flapper can read it what do you guys think Flipper's ready in read mode Let's see what it does absolutely nothing and just to show you that it's happening in real time let's just take the card out halfway and watch and then just read it to be honest it's a bit of a pain having to slide each one of the Cards into one of those little sleeves and put that into your wallet so I found a second product let...