A couple of years back, when we thought that the covid pandemic might actually be over someday I did some research on RFID blocking fabric to see if it was actually worth anything. Somewhat surprisingly, I discovered that it does actually do what it says it does, within certain parameters (if you don't use something right it won't work; who knew?)

Late last year two noteworthy things happened: First, I finally got my hands on a Flipper Zero after waiting many months for it to arrive (no thanks to US Customs seizing the shipment for unspecified reasons) and spent some …

For a couple of years now, I've had my eye on the community of people who've had RFID or NFC chips implanted somewhere in their bodies, usually in the back of the hand.  If you've ever used a badge to unlock a door at work or tapped your phone on a point-of-sale terminal to buy something, you've used one of these two technologies in your everyday life to do something useful.  What I've wanted to do for a while was use an implanted chip as a second authentication factor to my servers for better security.  As for why I couldn't …