Dino A. Dai Zovi
@ddz.bsky.social
I drink amari and I know things. $ddz LMDDGTFY: https://duckduckgo.com/?q=dino+dai+zovi NYC/BK
New users, on Signal, you can mute chats for a period or permanently. No notifications but you can still see if there are unread messages. On desktop: in that chat, go to Group Settings, then Notifications. On iPhone: in that chat, click on the name at the top, then go to Sounds & Notifications.
"Life Safety building automation is pretty awesome. 👏"
Jeff Moss@thedarktangent.defcon.social.ap.brid.gy · last yr.I’m at a #Starbucks in a mall, and they accidentally burned my chocolate chip cookie, opening the toaster send smoke everywhere. The building smoke detectors trigger which kicks on the air handlers to go to maximum to clear any smoke, which also triggers curtains to drop from key ceiling […]
Excellent writeup on how MCP future-proofs API integrations ~ @stevemanuel.bsky.social docs.mcp.run/blog/2025/03...
MCP: The Differential for Modern APIs and Systems | 🤖
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docs.mcp.run
Saw this on the other site but I should comment here: Can't remember his hacker handle but I think Pad & Gandalf of 8lgm were arrested the same day in 1991. You may not know it but the entire infosec & software industries owe 8lgm immense gratitude for making vendors accountable for their vulns
Exactly this. We should instead be investing that energy into making authentication in our environment unphishable by making it impossible to give away access to an attacker, even if someone actually wanted to.
Shell@risu.bsky.social · 2y agoI have never once run a phishing sim. I refuse to use the word. I put it in air quotes and say scam by text or email etc Tech and cyber has been about deflecting blame to anyone else but themselves- which is what sims are. Blaming people when the system they use should protect against issues.
I have never once run a phishing sim. I refuse to use the word. I put it in air quotes and say scam by text or email etc Tech and cyber has been about deflecting blame to anyone else but themselves- which is what sims are. Blaming people when the system they use should protect against issues.
NEW: WhatsApp says it has notified 90 victims, including journalists and members of civil society, that they were targeted with spyware made by Paragon. This is the first time that Paragon is linked to alleged abuse of its products. techcrunch.com/2025/01/31/w...
WhatsApp says it disrupted a hacking campaign targeting journalists with spyware | TechCrunch
The Meta-owned company said the campaign was linked to Israeli spyware maker Paragon.
techcrunch.com
Meta says almost 100 journalists and activists were targeted with spyware from Israeli company Paragon Solutions using a zero-click vuln in WhatsApp. If you use an iPhone, enabling Lockdown Mode prevents this from working. www.theguardian.com/technology/2...
WhatsApp says journalists and civil society members were targets of Israeli spyware
Messaging app said it had ‘high confidence’ some users were targeted and ‘possibly compromised’ by Paragon Solutions spyware
theguardian.com
If you're interested in the history of bug bounties, for reasons, this series I did a few years ago with @k8em0.bsky.social @caseyjohnellis.bsky.social @ddz.bsky.social and many others may be of interest. duo.com/decipher/law...
Lawyers, Bugs, and Money: When Bug Bounties Went Boom
Bug bounties have grown from a niche idea to encourage independent security research into a massive business and a legitimate career path for bug hunters in less than 15 years. This is the story of th...
duo.com
I'm really liking the crisp definitions of and boundaries between product engineering, domain engineering, and infra engineering in this. How much of your security org builds "what any company would need" (infra) vs. "what is unique to this company but shared across the company" (domain) ?
Jack Danger@jackdanger.com · 2y agoI've extracted the thesis of my new book into a short blog post (with images!). If you've ever seen an engineering team slow down over time this is for you: jackdanger.com/technical-co...
There are different privacy concerns and approaches for the training phase of AI as well as for the inference phase of using it. It's a good time to be thinking about what the right approaches are for each.
Matthew Green@matthewdgreen.bsky.social · 2y agoI wrote a post about how AI will interface with end-to-end encryption. TL;DR maybe not so well! blog.cryptographyengineering.com/2025/01/17/l...
I wrote a post about how AI will interface with end-to-end encryption. TL;DR maybe not so well! blog.cryptographyengineering.com/2025/01/17/l...
Let’s talk about AI and end-to-end encryption
Recently, I came across a fantastic new paper by a group of NYU and Cornell researchers entitled “How to think about end-to-end encryption and AI.” I’m extremely grateful to see t…
blog.cryptographyengineering.com
+1, security product vendors, services companies, *and* internal teams must always operate under the Hippocratic Oath, "First, do no harm."
Dave Aitel@daveaitel.bsky.social · 2y ago
So phone metadata *is* actually sensitive and important information? So hard to keep this straight.
FBI Has Warned Agents It Believes Hackers Stole Their Call Logs
FBI leaders have warned that they believe hackers who broke into AT&T Inc.’s system last year stole months of their agents’ call and text logs, setting off a race within the bureau to protect the ...
bloomberg.com
We blogged again! This time about our Data Safety Levels framework, which was inspired by the CDC/WHO Biosafety Levels system and Laboratory Biosafety Manuals. Like biological agents, we also don't want sensitive data to be exposed to humans or escape. code.cash.app/dsl-framework
Data Safety Levels Framework: The foundation of how we look at data in Block
Block uses the Data Safety Levels (DSL) Framework to evaluate data sensitivity.
code.cash.app
The placement of liability for fraudulent credit card charges onto the issuer incentivized the shift to EMV, so we now have smartcards in our wallets and secure elements on our smartphones. Contrast this to the security of authn to way more critical things than buying a coffee.
Ever wanted to benchmark RSA key generation but found it too slow and variable, like benchmarking a lottery? No? Just me? Well, I nerd-sniped myself into producing average representative inputs that can be used to benchmark, profile, and compare RSA keygen. c2sp.org/CCTV/keygen Happy New Year(?)!
Benchmarking RSA Key Generation
RSA key generation is conceptually simple, but extremely tricky. Even benchmarking involves math: we generated a stable but representative “average case” instead of using the ordinary statistical appr...
words.filippo.io
This Salt Typhoon stuff is insane. The entire FISA surveillance infrastructure has been completely owned by China and literally no part of our telecom infrastructure is safe to use without end-to-end encryption.
You’re still arguing about tabs vs. spaces? May I present…
The subtle benefit of *minimal* version selection as a systemic damper on software supply chain attacks: "What’s more, the deeper in your dependency tree the library is, the more explicit approvals are required for the library to propagate to your project." matklad.github.io/2024/12/24/m...
Minimal Version Selection Revisited
In this post, I want to highlight one aspect of Go-style minimal version selection that I have missed completely at first. Maybe you missed it too?
matklad.github.io
The transition from static long-term "credentials" (PAN + CVV) to EMV cryptograms generated by smartcards and the continuing transition for online payments are good case studies for how to devalue data to the point of making attacks on processing infra no longer worthwhile. Human authn must be next.
Honestly, the Let's Encrypt folks don't get nearly enough credit for basically protecting the entire fucking internet, by making it absolute bog standard to encrypt everything. It happened so fast and so many people were skeptical.
Bob Lord@boblord.bsky.social · 2y agoVPN vendors have huge budgets to advertise on your favorite podcasts. We don't have marketing for the IETF, browser and OS security teams, CAs (Let's Encrypt), CDNs, researchers, open source authors, website builders, digital rights activists... We made the web secure and didn't tell anyone.
An excellent episode on a topic on which I've given some thoughts in my book with similar conclusions: 1️⃣Targeting TikTok in the name of "national security" avoids addressing the structural problems of unregulated personal data and content moderation.
Knight First Amendment Institute@knightcolumbia.org · 2y agoTune in to "Speech & the Border E5: The Free Speech Costs of Banning TikTok" with @ramyakrishnan.bsky.social (@knightcolumbia.org), @anupamchander.bsky.social (Georgetown Law), and @meredithmeredith.bsky.social (@signal.org), for a deep dive on the #TikTok ban. podcasts.apple.com/us/podcast/s...
Directory traversal vulnerabilities have plagued software customers for over two decades. It's time for software companies to step up and eliminate this persistent class of coding error entirely. More info here: https://buff.ly/3QpbblJ
A bias can form if folks' primary exposure to Signal (or really any other tool) is through observing malicious uses. I've seen it happen with cryptocurrencies as well. A useful tool will often find itself useful for both beneficial and malicious use-cases. It's as old as discovering fire.
Meredith Whittaker @meredithmeredith.bsky.social · 2y agoThis is disingenuous marketing. Signal chats can't be 'monitored' by anyone not in those chats. Dressing up "joining groups via publicly posted links, then exfiltrating group data" as an offensive 'cybercapability' borders on misinfo, and confuses/scares ppl who rely on Signal for robust privacy.
