News for hackers. Stuff that matters.

dguido

Re:Backporting security fixes at scale with Codex on Monday November 02, 2026 @10:28AM (#50338157)
Sad reality that most Linux kernel bugfixes never reach the multitude of stable releases that most distros use.
Re:Show HN: Steal My Bitcoin on Saturday October 24, 2026 @06:23PM (#50226010)
This looks like a trap. We have a working RCE that would claim this, but I don't want to demonstrate that because it might leak what we built to others. We still have a window for people to patch and I don't want to risk that.

https://x.com/dguido/status/2113825891021144306?s=46

Re:There isn't an easy exploit for this PHP vulnerability on Thursday October 22, 2026 @12:27AM (#50191174)
Hi, I am the CEO of Trail of Bits (https://www.trailofbits.com). We've had two of our staff independently write working exploits for this flaw. The first one took about 4 hours, start to finish. The second was a similar amount of time spread over the course of a day. We've tested our exploits to work on an unmodified MediaWiki.

tl;dr writing exploits still requires expertise, even when you're being aided by an LLM

Re:AI agent fixed the bug, but what else did it change? on Wednesday October 21, 2026 @02:38PM (#50185554)
I agree with that, but these are two parts of a whole. Even software with reduced attack surface needs the ability to react quickly to discovered issues.
Re:AI agent fixed the bug, but what else did it change? on Wednesday October 21, 2026 @12:18PM (#50183475)
We're staring down the vulnpocalypse we predicted earlier this year. What matters now is how fast you can react to it. Trail of Bits has developed these capabilities to dramatically increase how fast fixes can go out.

Coordinated disclosure serves little purpose now. It used to require effort to go from vulnerability to exploit, but now we have nearly unlimited, capable expertise on tap with AI. As a product owner, you need to ramp your dev speed to make patches instantaneously after external reports.

Please use our patching-bugs and regression-hunt skills to ship fixes faster!

Re:1Password's AI patching benchmark is misleading on Tuesday September 15, 2026 @09:49AM (#49712501)
Kind of insane that anyone would think AI can only patch things correctly 26% of the time
Re:Cell Service for the Fairly Paranoid on Tuesday February 24, 2026 @07:30PM (#47145644)
I use Cape every day on my iPhone. The service is excellent, and the security features haven't ever interfered with my use of the phone. They have a convenient mobile app for setting up extra features like the IMSI rotation and getting support. As a tech savvy user, it matches what I want.

I'm a target for a variety of things, and knowing that no one can SIM swap me is worth the subscription alone. The SS7 protections, encrypted voicemail, secondary numbers, IMSI rotation, etc are all a bonus.

Re:Cell Service for the Fairly Paranoid on Tuesday February 24, 2026 @07:25PM (#47145599)
I have a conflict of interest here (I am an advisor to Cape, also a security expert, and my company has done security audits for Cape), you should absolutely look more deeply into what Cape has created. Their service is fundamentally different than other "security-focused cell providers" (mostly snake oil IMHO) because Cape wrote their own mobile core, nearly from scratch. They control the whole software stack and have done really innovative things with it.

Here are a few things you might want to look at more closely:

Encrypted voicemail uses public key crypto: https://www.cape.co/blog/product-feature-encrypted-voicemail

How they use full control of the mobile core to detect SS7 signaling attacks https://www.cape.co/blog/product-feature-network-lock

Swapping SIMs is done via digital signatures, not customer support https://www.cape.co/blog/cape-product-feature-secure-authent...

They're the only provider that can rotate your IMSI, and do it continuously for you https://www.cape.co/blog/product-feature-identifier-rotation

They're also one of very few organizations doing original research on cell network security:

Collaborating with the EFF to release software for detecting cell site simulators (e.g, imsi catchers et al) https://www.cape.co/blog/how-eff-and-cape-collaborated-to-im...

Identifying novel weaknesses for physically tracking people on cell networks https://dl.acm.org/doi/pdf/10.1145/3636534.3690709

If you want a VPN you can trust, deploy your own with AlgoVPN: https://github.com/trailofbits/algo
Re:Prompt injection to RCE in AI agents on Friday October 24, 2025 @01:00PM (#45696583)
We're a bit non-committal about who this affects in the blog, but phew man, there are a lot of agent systems that will fall victim to this general class of attack.
Hi! I'm the author of this PR and the maintainer for Algo. Claude Code has been a tremendous help dealing with a project of this scope and size. This PR to eliminate storing lots of sensitive data on the host was an interest of mine for a while, but Claude Code let me finally make progress on it. I tried to strike a balance between security and privacy (you need logs to investigate issues!). Let me know what you think. Thanks!
Re:Hijacking multi-agent systems in your PajaMAS on Tuesday August 19, 2025 @12:11PM (#44953193)
Hi all, CEO of Trail of Bits here. PajaMAS includes all our guidance for building multi-agent systems securely, including core design principles, a multi-agent security checklist, and framework selection criteria. Hope it helps!
Re:A privacy VPN you can verify on Saturday August 16, 2025 @02:51AM (#44920879)
This is cool, and I'm glad to see someone doing this, but I also feel obligated to mention that you can also just quickly deploy your own VPN server that only you have access to with AlgoVPN: https://github.com/trailofbits/algo
Re:Exploiting zero days in abandoned hardware on Tuesday July 29, 2025 @02:06PM (#44726503)
In case anyone is looking for them, here are the exploits for these EOL devices. I avoided allowing Trail of Bits to release exploits for 13 years, but I decided it was finally time for a policy change. We'll be dropping a lot more as time goes on now.

Here's the exploit for the Netgear WGR614v9: https://github.com/trailofbits/exploits/tree/main/junkyard-2...

Here's the exploit for the BitDefender Box 1: https://github.com/trailofbits/exploits/tree/main/junkyard-2...

There's a lot of included detail so you can learn how to write your own and really understand every decision we made in writing them.

Please stop putting salespeople in charge of highly technical product companies like Sonos. I'm so glad that Tom Conrad is an engineer by training. I hope he can turn this mess around.

The key technical change that broke Sonos was abandoning their reliable UPnP (Universal Plug and Play) system for device discovery in favor of mDNS, while also shifting from direct device communication to a cloud-based API approach. This new architecture made all network traffic encrypted and routed through Sonos cloud servers (even for local operations), adding significant overhead and latency, especially for older Sonos devices with limited processing power. They also switched from native platform-specific UX frameworks to a JavaScript-based interface while moving music service interactions through their cloud instead of direct SMAPI calls, resulting in slower performance and reduced functionality.

For a more extended discussion, see this excellent LinkedIn post from Andy Pennell, a principal engineer at Microsoft with a deep technical understanding of Sonos systems. He created one of the most successful third-party Sonos apps for Windows Phone and worked directly with Sonos on their official Windows Phone 8 app.

https://www.linkedin.com/pulse/what-happened-sonos-app-techn...

Re:AWS Nitro Enclaves: Attack Surface on Thursday September 26, 2024 @12:52PM (#41660623)
As the editor of this blog, I can assure you that AI did not craft the introduction. As a general rule, we include all the most relevant details in the above-the-fold section, allowing readers to quickly determine if the content warrants their time. This is consistent across all our blog posts.
Re:Cautionary tale on using Chase bank for indie business on Friday August 23, 2024 @01:19PM (#41330899)
Strong recommend on using meow.com. You can get interest on your primary checking account, and easy access to high yield treasury management services.

I’ve been following the Evolve Bank fallout on the FinTech Weekly newsletter, and the whole situation scares me about Mercury. I used to bank with them, but the sanctions by the Federal Reserve and the continued disclosures about lacking KYC and money laundering controls has me worried there are other problems.

Re:Exploiting the iPhone 4 on Monday October 02, 2023 @02:38PM (#37742525)
For fun things you can do with a good working jailbreak, check out this integrity validator that checks if your phone is free of malware by exploiting it: https://github.com/trailofbits/ios-integrity-validator
Re:Exploiting the iPhone 4 on Monday October 02, 2023 @02:37PM (#37742516)
Good work, this is super cool!
Re:Smart Contract Security Field Guide on Wednesday July 26, 2023 @06:57PM (#36886298)
Oh neat! I didn't realize. It's good! I could have been fooled it was done by a whole team :D
Re:Smart Contract Security Field Guide on Wednesday July 26, 2023 @01:56PM (#36882003)
I appreciate how organized the Consensys guide is laid out. It's pretty easy to read. Trail of Bits has a similar guide that is a little more in-the-weeds technically. It also covers, what we think is, essential background about certain automated analysis techniques like static analysis and how fuzzers work. Check it out!

https://secure-contracts.com/

Re:Chatbot Arena Leaderboard Updates (Week 4) on Thursday May 25, 2023 @10:38PM (#36079087)
We need this for code understanding models like StarCoder and the like
Re:Ask HN: How can I get into cyber security research? on Sunday January 29, 2023 @07:41PM (#34574433)
Trail of Bits does this kind of work (https://www.trailofbits.com)!

Tbh there is a much larger market for application of existing technology (e.g., pentests) than development of new technology (e.g., DARPA programs and the 1% of tech firms that need something new). There are a handful of others, but the market doesn't support dozens of other firms like Trail of Bits. There is some innovation that happens in Series A and B security startups but IMHO that quickly gives way to pressures of building an enterprise sales team.

Re:Scanning your iPhone for Pegasus on Sunday August 01, 2021 @06:30PM (#28030778)
We're using most of the exact same file-based indicators as MVT. It's really refreshing that Amnesty shared so much of what they found -- it made our own process of testing our checks against their discoveries much easier.
Re:Scanning your iPhone for Pegasus on Sunday August 01, 2021 @06:28PM (#28030761)
Trail of Bits here -- while this is mostly correct, there are also parts of the runtime that dead file forensics won't be able to identify. There's no harm in doing both and, in fact, we'd recommend it if you're concerned.
Re:Smart Contract Security for Pentesters on Thursday April 22, 2021 @11:01AM (#26903533)
Ugh, I have been advocating "Solidity--" for years and can't get funding to build it (Trail of Bits).

We use two tools to offer quick turnaround automated testing and verification for Solidity: Echidna (like QuickCheck for Solidity) and Manticore (a symbolic verifier). They each let you write high level properties in the span of 1-2 weeks that cover a large amount of potential use cases.

Here's an example of what that looks like: https://github.com/trailofbits/publications/blob/master/revi...

Here's Echidna: https://github.com/crytic/echidna

and Manticore: https://github.com/trailofbits/manticore

Sometimes we also use custom static analyses built around Slither's IR during projects too: https://github.com/crytic/slither/wiki/SlithIR

Re:Smart Contract Security for Pentesters on Thursday April 22, 2021 @10:30AM (#26903162)
Yes! Please do apply. We have a tight-knit team of experts, industry leading tools, and a work environment that promotes continued learning. You'll get paid well and quickly become a leading industry expert. Here's our job req for a blockchain security analyst: https://jobs.lever.co/trailofbits/4f459855-3299-462f-9e73-29...
If you're looking for a hardening guide for iOS, then try the iVerify app. It will help you detect jailbreaks, check critical security settings, and teach you about many more.

https://blog.trailofbits.com/2019/11/14/introducing-iverify-...

It's not sensationalist when you realize it directly contradicts Twitter's prior statements from just last year about it:

> Twitter, in a statement, said it is aware that "bad actors" will try to undermine its service and that the company "limits access to sensitive account information to a limited group of trained and vetted employees."

https://www.npr.org/2019/11/06/777098293/2-former-twitter-em...

1,000 people, including contractors outside the company, is not a "limited group of trained and vetted employees." It's news because they misled people about their security, again.

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