ZygoSec (@ZygoSec) header
ZygoSec (@ZygoSec) profile picture

ZygoSec

@ZygoSec

Education platform for acquiring skills in modern vulnerability research & software exploitation

 London, UK
zygosec.com
Joined May 2017
  • Tweets52
  • Following1
  • Followers1.6K
19Media
Photo by ZygoSec (@ZygoSec)Photo by ZygoSec (@ZygoSec)Photo by ZygoSec (@ZygoSec)Photo by ZygoSec (@ZygoSec)Photo by ZygoSec (@ZygoSec)Photo by ZygoSec (@ZygoSec)Photo by ZygoSec (@ZygoSec)Photo by ZygoSec (@ZygoSec)Photo by ZygoSec (@ZygoSec)
I made an image that crashes your iPhone. Here’s how it works. youtu.be/nPuU_9Kbb5o?si=ZRlH…
Why can't your iPhone render this image?

Why can't your iPhone render this image?

Are you a security researcher or reverse engineer?For 50% off IDA...

youtube.com
6
37
4,611
New blog post: Uncovering an iOS 26.5 ImageIO Vulnerability zygosec.com/blog
Image from ZygoSec (@ZygoSec)
2
39
2,327
How does this JavaScript code silently hack your iPhone? youtu.be/HhFy2JlO5WA?si=U8bP…
7
28
6,152
Reverse Engineering the iOS Home button press API youtu.be/OMfZzLbUm6U?si=lHsk…
8
47
7,972
The iOS sandbox + How hackers escape youtu.be/E6etGQaVJC0?si=EzUB…
1
17
76
8,287
Analysing a 0-click exploit for iOS 16.6 youtu.be/0JFcDCW3Sis?si=zsRk…
Image from ZygoSec (@ZygoSec)
15
1
93
13,191
The Kernel wasn’t supposed to free() this object… (CVE-2017-13861) youtu.be/CkZn_SZPRfo?si=EArw…
Image from ZygoSec (@ZygoSec)
7
97
7,143
How 1-click iOS exploit chains work (WebKit exploitation basics) youtu.be/o6mVgygo-hk?si=pdXW…
Image from ZygoSec (@ZygoSec)
2
30
133
7,741
Is the iPhone 17 Safe from Exploitation? (MTE breakdown) youtu.be/UVD0fbiNbnM?si=z9sC…
1
14
1
78
14,970
Does the iPhone 17 Kill Exploitation for Good? (Memory Integrity Enforcement breakdown) youtu.be/UVD0fbiNbnM?si=Af4S…
Image from ZygoSec (@ZygoSec)
4
19
2,621
How Does the iOS Kernel Copy Memory? (Virtual Memory Internals) youtu.be/0hxUEaDp1AA?si=uJ7w…
Image from Billy Ellis (@bellis1000)
4
42
205
16,362
Out-of-bounds swap on iOS heap when decoding a malicious audio stream (CVE-2025-31200) youtu.be/RWjpM0zDJVA?si=nlv3…
1
34
186
12,423
How This Weird Exploit Primitive Corrupts iOS Heap Memory youtu.be/RWjpM0zDJVA?si=tqvM…
Image from ZygoSec (@ZygoSec)
11
62
4,637
This Video Can Exploit Your iPhone (CVE-2025-31200) youtu.be/nTO3TRBW00E?si=mgc6…
Image from ZygoSec (@ZygoSec)
3
24
2,872
Allocating Objects to Build Kernel R/W Primitives youtu.be/Y-UI4dEFXFk?si=8XSh…
Image from ZygoSec (@ZygoSec)
3
37
3,781
How PhysPuppet Exploits the iOS Kernel youtu.be/0q4HThusovQ?si=b9wA…
Image from ZygoSec (@ZygoSec)
3
31
102
14,484
How This JavaScript Code Exploits your Browser (CVE-2023-38600) youtu.be/Qn_y6Pwweq4?si=T0RE…
Image from ZygoSec (@ZygoSec)
1
4
1
31
5,119
Today I wanted to share a recent project of mine - a tool for visually representing & tracking memory, for iOS security researchers bellis1000.medium.com/a-memo…
A Memory Visualiser Tool for iOS Security Research

A Memory Visualiser Tool for iOS Security Research

Happy New Year!🥳

bellis1000.medium.com
12
212
1
790
Just published a tool I wrote a couple months back to pull C++ object names from kernel memory. Bit hacky, but works & is useful if you're someone who spends a lot of time looking at kernel memory dumps. github.com/Billy-Ellis/kobje…
Image from Billy Ellis (@bellis1000)
4
41
173
Just published a new blog post - Exploring the ASLR implementation in the iOS kernel medium.com/@bellis1000/aslr-…
ASLR & the iOS Kernel — How virtual address spaces are randomised

ASLR & the iOS Kernel — How virtual address spaces are randomised

In this blog post I wanted to take a look at ASLR and how the iOS kernel implements it for user-space processes.

bellis1000.medium.com
11
113
5
434
Load more