Hey, I'm Jian. I like breaking iOS security mitigations and building weird tools with Swift.
My main focus right now is the Apple Security Bounty program—hunting logic bugs, kernel issues, and writing PoCs.
- CVE-2025-46280 (Assigned Dec 2025)
- Impact: [Soon]
- Description: [Soon]
- Reversing: IDA Pro, Ghidra, Hopper Disassembler
- Dev: Swift (SwiftUI)
- Focus: Bugs in Apple deviecs, Mach-O parsing, Sideloading iPA
- IPASigner – Sign & inject tweaks into
.ipafiles on the fly. - ReDyne – Attempting to build a proper native decompiler for iOS.
- APKRunner – iOS app for running native APKs (Work in Progress).
- UniGram – Simple app to scrape and push university notifications.
Contact: DM me on Discord, Twitter (@Speedyfriend433) or email [email protected].
Note: I break things to learn how to fix them. No piracy, just research.
🇰🇷 / 🇺🇸