Kro’s Nest
Home of m5kro
Latest Posts
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Bluetooth LE Encryption
A few days ago, I stumbled upon BLEUnlock, a project that used BLE (Bluetooth Low Energy) to unlock Mac devices based on the proximity of a secondary device, like an iPhone or Apple Watch. After roughly looking through the repository, it became apparent that the software lacked encrypted communications to facilitate authentication. Instead, it merely…
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What Your Browser Gives Away
Ever wonder what information websites get from your browser? At first glance, you might think it’s just basic stuff, like a return address, but it’s much more complicated than it seems. In this article, we’ll go over what sites can see about your device and why they would need this data. Note: You can check…
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NFC Card Emulation
NFC and RFID are widespread technologies commonly used in services like contactless payments, item scanning, and security keycards. Over the years many technologies using NFC have been reverse engineered or hacked, resulting in tools like the proxmark or flipper zero. NXP, one of the big keycard manufacturers, has had multiple generations of their Mifare security cards…