AI Cybersecurity @ Anthropic Potentially a legit security researcher he/him https://xitter.cf/t.co/GCcLVlmdQK https://xitter.cf/t.co/uQWVpw4nft 0xdf on discord

Joined January 2015
Eloquia from HackTheBox features an AngularJS CSP bypass, OAuth account hijacking, a malicious SQLite extension, saved Edge passwords, and a .NET service abused with AppDomainManager injection and DLL hijacking. 0xdf.gitlab.io/2026/10/17/ht…
21
112
3,808
Where on the Flare-on page does it show how much time is left? @nickharbour
4
1,044
DevHub from @hackthebox_eu features an unauthenticated RCE in the MCPJam MCP inspector, a Jupyter token leaked in a systemd service, and an internal MCP server running as root with a hidden tool that dumps root's SSH key. 0xdf.gitlab.io/2026/10/10/ht…
8
20
1
97
4,787
New blog is live: blog.safetech.red 🦀 🔥 Red and Purple notes, and first article out: 📝 The origins of RustHound-CE Why I built an AD collector in Rust back in 2021, what the BloodHound Community Edition turn changed, and where the tool stands today. The original post had disappeared with the old company website, so it is back online, rewritten and up to date. EN: blog.safetech.red/rusthound-… FR: blog.safetech.red/fr/rusthou…
2
14
49
3,326
This is so well done
The Bitter Lesson explained with a music video. Extraordinary.
1
22
2,976
SmartHire from @hackthebox_eu features an MLflow instance with creds from the docs, pickle deserialization in a PyFunc model for RCE, and a Python path configuration file dropped into a writable plugin directory for root. 0xdf.gitlab.io/2026/09/26/ht…
3
10
55
3,139
x changed it's rules so posting via API costs money now. My posts will still go live at retire time each week, but the tweet may be later. Follow me on Linkedin or BlueSky or Mastadon for automated posts.
1
16
1,607
Frontier models have lowered the bar for discovering and exploiting vulnerabilities. This has resulted in an increase of CVEs and workload for both SWE and vulnerability management teams. And yet the norms around coordinated vulnerability disclosure timelines have remained around 90 days. This timeline worked 10 years ago, but is unlikely to survive much longer. We need to move closer to a window of 30 days. But in order to do this we need to rely on those same models to accurately fix those vulnerabilities and coordinate the release and deployment of new versions. The primary blocker here seems to be confidence in those models to do that job well, and reluctance to remove humans from that loop. Every day the probability of another shellshock, log4j, or heartbleed rises. If you were in the trenches for those events then you know how difficult it was to track vulnerable assets, test and deploy patches, and ensure the risk was mitigated. We shouldn’t wait for a crisis like this to rethink and change these norms. We need to move much faster and that requires shorter disclosure timelines, and removing humans from the vulnerability management loop.
15
28
9
143
50,701
Hercules from @hackthebox_eu features LDAP injection with a rate limit bypass, an ASP.NET machine key leak to forge auth cookies, odt auth coercion, shadow credentials, ESC3, and S4U2self abuse for the domain. 0xdf.gitlab.io/2026/09/21/ht…
8
96
4,714
Really nice lab. Learned some new techniques. Big thanks to @mpgn_x64 and @mael91620 for running this. @ippsec and I got started a few hours late (it started at 5am), but we managed to finish. ctrlzero came through big when he was able to join for the last few flags!
The CTF is now over! Congratulations to the winners: Team Gogoplata - kenolab 🏆🥇 Team DTB 🥈 Team Gold or Hack 🥉 Team Sub5 warriors Team Eagles Only these five teams finished the lab, mad respect and what a run! Congratulations again ! 🎉
5
8
104
9,162
Silentium from @hackthebox_eu features a password reset token leak in Flowise leading to account takeover, then RCE via its custom MCP node. Container env vars give an SSH password, and a symlink bug in Gogs gets root. 0xdf.gitlab.io/2026/09/12/ht…
2
14
71
4,293
0xdf retweeted
Try this prompt in Claude chat to give it more context about yourself: Interview me in depth using free text, or askuserquestion tool when multiple choice works, about relevant parts of my life you don’t know about yet and save it all to memory.
i have long thought ChatGPT, Claude, etc. would be 10x more useful if they just spent 20 minutes interviewing me. really dig into my life, how I think, what I care about, what I’m trying to do. and keep asking questions as we work together.
88
141
38
2,738
385,153
This is such an interesting read. The threat intel team does some 💪 work. The hacking stuff is really interesting. The other stuff is terrifying.
We're publishing our most detailed threat intelligence report to date. It covers how people tried to misuse Claude—for cyberattacks, influence operations, surveillance, biology, and building weapons—and how we found and stopped them. We disrupted every operation in the report, and used the lessons from them to strengthen our safeguards. Where appropriate, we also shared what we found with authorities and other AI companies. These cases are not typical: we’re highlighting some of the most sophisticated misuse we’ve seen. But they’re especially important to discuss, because they show us where AI misuse is headed, where our safeguards work, and where they need to improve. We’re publishing this report so others can spot the same activity on their own platforms, and so we can give the public a clearer view of how emerging threats develop. Read the report: anthropic.com/threat-intelli…
4
12
1
142
18,447
Pirate from @hackthebox_eu is an AD assume-breach box: pre-Windows 2000, gMSA password, NTLMv1 coerce-and-relay for RBCD, and SPN-jacking to impersonate the domain admin. Unintended path using RemotePotato0 to cross-session relay. 0xdf.gitlab.io/2026/09/05/ht…
22
122
7,169
Big update for RustHound-CE version 2.5.9 🦀 🔥 New in this release: - GPO parsing from SYSVOL (AdminTo, CanRDP, CanPSRemote, ExecuteDCOM edges) - Live session collection over RPC (SRVSVC / WKSSVC / WINREG) - ESC8 web-enrollment scanner - Pass-the-Hash auth support (with NT hash) All wired into --collection-method All 🚀 github.com/g0h4n/RustHound-C…
4
41
184
9,149
A great reminder that our favorite content creators are people with lives and challenges just like everyone else.
Recently I uploaded two new videos! But I have been pretty inactive the past 2-3 years and a lot has happened. Let me share an update about my life, AI and the future of LiveOverflow.
2
14
329
14,814
𝗧𝗵𝗲 𝗘𝗻𝗱-𝗦𝘁𝗮𝘁𝗲 𝗙𝗮𝗹𝗹𝗮𝗰𝘆: 𝗪𝗵𝗲𝗿𝗲 𝗜𝘀 𝗔𝗜 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆 𝗚𝗼𝗶𝗻𝗴? Frontier AI models had a giant performance gain in coding in the Fall of 2025 Then with cybersecurity in April This is now happening with open-weight models We are optimistic about the long-term But outside of a few players, we believe the world is not ready in the short-term
56
64
62
344
278,571
0xdf retweeted
The writeup contains a nice rbash escape that I wasn't aware of.
Cobblestone from @hackthebox_eu features a second-order SQL injection, stored XSS to hijack an admin session, and Twig template injection for code execution under AppArmor. Then multiple paths to root through Cobbler running as root. 0xdf.gitlab.io/2026/08/15/ht…
1
19
2,589