Agents need better tools for reversing! I'm releasing declib (previously libbs), with a new CLI today that gives agents CLI access to 4 decompilers (IDA, Ghidra, Binja, angr), parity feature support to most MCP (12 features), and the ability to sync those changes across decs!
A man spends 50 years teaching at MIT.
He knows his time is running out.
So he records one last lecture — everything he knows, distilled into a single hour.
He died 5 months later.
This is that lecture.
The most important hour you'll watch this week. 👇
Bookmark it for later
Please tell your friends, four weeks before @phrack submission deadline! We also are seeking both interior and cover art. We are working with our friends at @pagedout_zine again to create a fancy interior design for our main annual release!! Be a part of hacker history!
just ran across this cool looking project: https://t.co/AYNzSynAgI
when i get a chance, i'll have to check it out. comment if you have tried it and like/dislike it :)
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A man spends 50 years teaching at MIT.
He knows his time is running out.
So he records one last lecture — everything he knows, distilled into a single hour.
He died 5 months later.
This is that lecture.
The most important hour you'll watch this week. 👇
Bookmark it for later
Today is my last day at Block, closing out almost 11 of the last more than 12 years helping build security into products that serve tens of millions of people and safeguard billions of USD in monetary value.
I'm exceptionally proud of what we accomplished during my time there: growing Square to EMV payments and international markets, building security into Cash App's cloud platform from the very beginning, establishing pervasive application-layer encryption across Cash App services, growing client authenticity signals into a platform that now protects tap-to-pay, making bitcoin custody significantly safer and secure, creating data classification frameworks that became company-wide standards, safely migrating critical encryption infrastructure to the cloud, meeting PCI certifications for mobile payments acceptance, and shipping exciting new secure-by-design hardware products.
I'm grateful to the incredibly talented people I worked alongside. It's rare to find a place where you can do interesting work that matters with such great people at that scale for that long.
As for what I'm doing next, stay tuned. I'm excited to start again somewhere new (to me)!
For years, Rust binaries made reversing a nightmare. Modern decompilers only support C, lacking meaningful types, constructs, and language-specific functions. Led by @34r7hm4n, we're releasing our S&P work Oxidizer, the first deep Rust decompiler, built on angr!
Interested? 🧵👇
@sysfai1 Sure! It’ll be easier than ever to learn. The whole point is to know where to steer the thing, how to second guess and check it, how to make sense of what it finds.
Exim 4.99.3 is out, patching CVE-2026-45185, a critical RCE found by XBOW! Check out our post linked in the reply; I'll summarize some details in this thread.