ARKit face tracking is shrouded in a ton of myth and mystique.
I reverse engineered the internal face tracking API, and this is how it actually works.
This is based on reverse engineering the API of Apple's face detection framework and testing it with my own code. Some of it is educated guesswork based on names and strings. I did not reverse engineer the details of how ARKit/FaceKit works, but given what I've seen, I'm quite confident in the overall big picture.
| // thread 0: | |
| nn::os::WaitLightEvent(master); | |
| sleep(0); | |
| // Clone of the IFileSystem handle for the "save" mount. | |
| // Sends the serialized buffer for IFileSystem::Commit() | |
| svcSendSyncRequestWithUserBuffer(b + 0x10000, 0x1000, clone(saved)); | |
| memset(completedFlag, 1, 1); | |
| // thread 1: | |
| nn::os::WaitLightEvent(master); | |
| sleep(300000); |
hi, i'm daniel. i'm a 15-year-old high school junior. in my free time, i hack billion dollar companies and build cool stuff.
3 months ago, I discovered a unique 0-click deanonymization attack that allows an attacker to grab the location of any target within a 250 mile radius. With a vulnerable app installed on a target's phone (or as a background application on their laptop), an attacker can send a malicious payload and deanonymize you within seconds--and you wouldn't even know.
I'm publishing this writeup and research as a warning, especially for journalists, activists, and hackers, about this type of undetectable attack. Hundreds of applications are vulnerable, including some of the most popular apps in the world: Signal, Discord, Twitter/X, and others. Here's how it works:
By the numbers, Cloudflare is easily the most popular CDN on the market. It beats out competitors such as Sucuri, Amazon CloudFront, Akamai, and Fastly. In 2019, a major Cloudflare outage k
This is a living document. Everything in this document is made in good faith of being accurate, but like I just said; we don't yet know everything about what's going on.
Update: I've disabled comments as of 2025-01-26 to avoid everyone having notifications for something a year on if someone wants to suggest a correction. Folks are free to email to suggest corrections still, of course.
| /* This file was generated by the Hex-Rays decompiler. | |
| Copyright (c) 2007-2020 Hex-Rays <info@hex-rays.com> | |
| Detected compiler: GNU C++ | |
| */ | |
| #include <defs.h> | |
| //------------------------------------------------------------------------- |
Hello! It's been a while since I've done any write-ups, but I thought I'd do one to (hopefully) bring a little clarity to a situation that's been causing a lot of confusion and misinformation.
I'm thinking I'll go through what the problem is and why it happens. So, I guess, let's dive in:
Some people are finding that upon updating to 17.0.0, their consoles are getting a blackscreen and refusing to boot further.
| #include <string> | |
| #include <dlfcn.h> | |
| #include <stdio.h> | |
| #include <sys/mman.h> | |
| #include <unistd.h> | |
| #include <errno.h> | |
| #include <stdlib.h> | |
| using namespace std::literals; |
| #!/usr/bin/env bash | |
| # Created by Alan Bixby (10/29/2021) | |
| # Installs a portable version of Visual Studio code in "$/HOME/.bin", since students lack write access to /usr/bin or sudo access to use the get-apt installer. | |
| # TODO: Tested to be functional, but I still need to add functionality to prevent running on an invalid OS, or from attempting to run it multiple times (after it previously working). | |
| SAVE_DIR=".bin" | |
| mkdir $HOME/$SAVE_DIR | |
| wget -O "$HOME/$SAVE_DIR/VSCode-linux-x64.tar.gz" "https://code.visualstudio.com/sha/download?build=stable&os=linux-x64" |
| // | |
| // SEC Functionality | |
| // | |
| #define SEC_SYSTEM_POWER_ON 0x01 // CPU power on and switch to Protected mode | |
| #define SEC_BEFORE_MICROCODE_PATCH 0x02 // Patching CPU microcode | |
| #define SEC_AFTER_MICROCODE_PATCH 0x03 // Setup Cache as RAM | |
| #define SEC_ACCESS_CSR 0x04 // PCIE MMIO Base Address initial | |
| #define SEC_GENERIC_MSRINIT 0x05 // CPU Generic MSR initial | |
| #define SEC_CPU_SPEEDCFG 0x06 // Setup CPU speed | |
| #define SEC_SETUP_CAR_OK 0x07 // Cache as RAM test |
