Hacking A Xiaomi Air Purifier’s Filter DRM To Extend Its Lifespan

When [Unethical Info] was looking at air purifiers a while back, their eye fell on a Xiaomi 4 Pro, with a purchase quickly made. Fast-forward a while and suddenly the LCD on top of the device was s…

NFC Puts A Stake In The Ground

Sometimes we have a new part or piece of tech that we want to use, and it feels like a solution looking for a problem. Upon first encountering NFC Tags, [nalanj] was looking for an application and …

Air Filter DRM? Hacker Opts Out With NFC Sticker

[Flamingo-tech]’s Xiaomi air purifier has a neat safety feature: it will refuse to run if a filter needs replacement. Of course, by “neat” we mean “annoying”. Especial…

Cracking The MiFare Classic Could Get You Free Snacks

[Guillermo] started a new job a while back. That job came with an NFC access card, which was used for booking rooms and building access. The card also served as a wallet for using the vending machi…

NFC Performance: It’s All In The Antenna

NFC tags are a frequent target for experimentation, whether simply by using an app on a mobile phone to interrogate or write to tags, by incorporating them in projects by means of an off-the-shelf …