Grant H
digitalcold.bsky.social
Grant H
@digitalcold.bsky.social
Android and baseband vulnerability researcher. Computer engineering PhD. 🇺🇸 (Washington, DC) || https://hernan.de/z
A database of OTA updates I made
otachecker.com
OTAChecker
Track, download, and inspect Android over-the-air (OTA) updates with just a device's fingerprint. Currently tracking 1798 OTAs (1.18 TB) across 345 devices.
otachecker.com
September 18, 2025 at 2:38 AM
Had an excellent time at @re-verse.io. The people, the talks, the food and venue were all 💯

I was particularly happy to see friends from Europe make it across the pond, plus I got to reconnect with current and former students from UCF and UF.
March 3, 2025 at 3:37 PM
Florida Man has returned for @re-verse.io. See you all there!
February 27, 2025 at 4:45 PM
Reposted by Grant H
Looking forward to share our latest research on hostile SIMs and interposers at the upcoming RE//verse conference!
January 12, 2025 at 1:27 PM
I'll be at the final ShmooCon 💚! If you're around, come find me, and let's chat about basebands, emulation, Android, and sailing. ⛵

I'll also be at DistrictCon and RE//verse in Orlando.
January 9, 2025 at 3:30 PM
2025 is the year I want to finish more projects.
2024 was also the year I wanted to finish more projects.

It's not easy, so how did I do in 2024? I worked on an iOS app to lookup diplomatic license plates, an ASN.1 grammar fuzzer and webapp, and ... 1/
January 9, 2025 at 3:26 PM