Sign in

Matt Blaze

@mattblaze.org
16K followers 244 following 1.6K posts

Scientist, safecracker, etc. McDevitt Professor of Computer Science and Law at Georgetown. So-called expert on election security and a few other things. Slow photographer. RF nerd. Occasionally blogs at mattblaze.org/blog

PostsRepliesMedia
Matt Blaze @mattblaze.org · 24/09/2026
Heathrow airport has special corridors reserved for passengers with antlers, which seems very thoughtful of them but also oddly specific.
Sign reading: “→
Flight Connections
All terminals”

with a pictograph of a person walking and two pictographs of airplanes that appear to be radiating out of their head, resembling antlers.
77221
Matt Blaze @mattblaze.org · 23/09/2026
I love it when people use my qualifications as a rhetorical weapon (“you can’t understand because you’re a lawyer”), but I love it even more when they’re wrong about those qualifications (I’m not a lawyer).
3200
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 23/09/2026
The postmark situation has gotten significantly worse. Apparently mail is now routinely postmarked at sorting stations, not at local post offices as used to be the case. So it may be dated later. You can apparently still request at hand stamp at at retail window, but that requires standing on line.
274
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 23/09/2026
I get the impression that you aren’t reading or understanding the words in my posts, so I’m not going to bother sending any more of them to you.
111
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 23/09/2026
If you think I’m some sort of apologist for the administration or the postal service, I invite you to to Google me. I’m just trying to do my part to help the election be free and fair. And that requires knowing what’s actually happening, not just accepting what someone finds “obvious”.
292
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 23/09/2026
By all reports, the USPS has been complying with the court’s injunction and has been accepting and delivering election mail for the November general election. Any evidence of systemic destruction or refusal to deliver ballots would be a very big deal and extremely newsworthy.
231
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 23/09/2026
Personally, I would regard returning my ballot by mail this year to be a last resort if I had other options available. But not everyone does (especially rural voters in exclusively vote-my-mail states).
153
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 23/09/2026
Yeah, that was one of the reports I was thinking of. As far as I can tell, there’s been a general degradation of service, but not focused on election-mail specifically. And fortunately, by all indications they’ve been complying with the injunction on the new election mail rules.
232
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 23/09/2026
There’s some data suggesting that USPS service has degraded in the past few years, and that’s certainly something to keep an eye on. But these one-off anecdotes are pretty meaningless. Isolated mishaps, incompetence, and mistakes happen in any large organization or operation. Nothing is perfect.
451
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 23/09/2026
Maybe Elon Musk has SECRET MAGICAL POWERS, unconstrained by physics, engineering, or how elections are organized. If so, that would indeed be disturbing news. But I am aware of no evidence that he (or anyone else) actually possesses supernatural capabilities, for better or worse.
3206
Matt Blaze @mattblaze.org · 15/09/2026
I admire the dedication of Sen. McConnell, coming back as he did from the dead to distract from Trump's loss on mail voting in the Supreme Court this evening.
4517
Reposted by Matt Blaze
Rick Hasen @rickhasen.bsky.social · 11/09/2026
It sure would make a lot of election administrators' weekends go a bit easier if the Supreme Court ruled today, rather than next week, rejecting the government's request to put its disenfranchising USPS rules into effect for the already-begun 2026 elections.
923337
Reposted by Matt Blaze
Two all the way, a coffee milk, and a Del's @ri.oldfolkshome.org · 11/09/2026
Seriously. I say again to people — sign up to be a poll worker so you can see how things actually work.
0112
Matt Blaze @mattblaze.org · 11/09/2026
For the record, while there are indeed vulnerabilities in some US election systems, susceptibility to “lasers from space” is not one of them. Musk’s alleged claims here would not constitute evidence of election fraud, but rather evidence of a serious detachment from reality on his part.
910627
Reposted by Matt Blaze
Lea Kissner @leak.bsky.social · 03/09/2026
"Building Safer Technology: A Field Guide to Failing Well" is here and you can get it wherever books are sold (35% discount code for you in this thread). I've spent 20 years dealing with terrible things on the Internet and I've learned a lot about how to build things which really *work*.
A pile of books with the title "Building Safer Technology: A field Guide to Failing Well" in a cardboard box
2356
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 23/08/2026
See the full playlist (24 talks!) here: www.youtube.com/playlist?lis...
youtube.com
Voting Village 2026 Talks - YouTube
The talks program from the 2026 Voting Village @ DEF CON 34
0153
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 23/08/2026
Philip Stark on RLAs: www.youtube.com/watch?v=qVGO... Wareham and Gulati on investigating Puerto Rican election systems: www.youtube.com/watch?v=Ja3Q... Marks & Springer on de-anonymizing the secret ballot in Georgia: www.youtube.com/watch?v=s8sG...
youtube.com
07 VV26 DAY 1 7 Philip Stark - Evidence-Based Elections and Risk-Limiting Audits
YouTube video by Voting Village @ DEF CON
152
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 23/08/2026
A few (of many) notable highlights from the Voting VIllage: EFF's Tori Noble on the DMCA and election security research: www.youtube.com/watch?v=2FNg... Josh Benaloh on End-to-End-Verifiable elections: www.youtube.com/watch?v=JyND...
youtube.com
02 VV26 DAY 1 2 Tori Noble - What Election Security Researchers Need to Know about DMCA Section 1201
YouTube video by Voting Village @ DEF CON
1146
Matt Blaze @mattblaze.org · 23/08/2026
A few (of many) notable highlights from the Voting VIllage: EFF's Tori Noble on the DMCA and election security research: www.youtube.com/watch?v=2FNg... Josh Benaloh on End-to-End-Verifiable elections: www.youtube.com/watch?v=JyND...
youtube.com
02 VV26 DAY 1 2 Tori Noble - What Election Security Researchers Need to Know about DMCA Section 1201
YouTube video by Voting Village @ DEF CON
1146
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 22/08/2026
Didn't Eisenhower warn us about the Military/Ballroom Complex?
1183
Matt Blaze @mattblaze.org · 21/08/2026
The election deniers don't know what to make of us. They're all over the election system vulnerabilities and other issues we discover, but then get enraged when we fail to embrace their completely unsupported conclusion that some particular election was rigged.
36712
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 16/08/2026
Videos from all the talks at the Voting Village at #DEFCON34 are now up! A YouTube playlist can be found here: www.youtube.com/playlist?lis... Big thanks to all our speakers for their contributions to a terrific program this year, and a special shoutout to George Balbona, our heroic videographer.
youtube.com
Voting Village 2026 Talks - YouTube
The talks program from the 2026 Voting Village @ DEF CON 34
14615
Matt Blaze @mattblaze.org · 19/08/2026
Wow, the person who came across as a bad-faith troll turned out to be a bad-faith troll. Who’d have imagined?
1170
Matt Blaze @mattblaze.org · 19/08/2026
Getting yelled at by election deniers. Notably, you can't generally tell whether these are people who claim 2020 was stolen from Trump or 2024 from Harris. The script is exactly the same. Claims of "overwhelming" (but unspecified) evidence, bogus statistical nonsense, logical jumps. Generic disinfo.
3585
Matt Blaze @mattblaze.org · 16/08/2026
Videos from all the talks at the Voting Village at #DEFCON34 are now up! A YouTube playlist can be found here: www.youtube.com/playlist?lis... Big thanks to all our speakers for their contributions to a terrific program this year, and a special shoutout to George Balbona, our heroic videographer.
youtube.com
Voting Village 2026 Talks - YouTube
The talks program from the 2026 Voting Village @ DEF CON 34
14615
Matt Blaze @mattblaze.org · 14/08/2026
ICE is apparently bringing back Corruption of Blood.
03518
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 13/08/2026
Proper audits (with the right equipment) can tolerate flaws. Unfortunately, not all jurisdictions do these audits, or have the right equipment yet. Progress though!
071
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 13/08/2026
It's also worth noting that US elections are getting better and more secure precisely because we're openly discussing problems and weaknesses rather than denying any problems exist. There's been enormous progress over the last decade. There's still work to do, but elections have improved greatly.
0203
Matt Blaze @mattblaze.org · 13/08/2026
The four things people are yelling at me about today: - Hiding the fact that Trump stole the 2024 election - Helping Trump steal the 2024 election. - Hiding the fact that Biden stole the 2020 election - Helping Biden steal the 2020 election.
8241
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 13/08/2026
This is confusing and nuanced, but it's the unsatisfying reality we're in. Making these systems better - something we know how to do with things like paper ballots and risk-limiting audits - is probably the only viable path forward.
281
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 13/08/2026
There are serious vulnerabilities in some voting systems used in some US jurisdictions, and some could be exploited to alter election outcomes by an adversary with significant resources. This is a real problem, and minimizing it doesn't serve anyone. But there's no evidence this has happened.
172
Reposted by Matt Blaze
Politico @politico.com · 12/08/2026
Voting machines have real security issues. Researchers worry they could be weaponized by election deniers.
dlvr.it
Voting machines have real security issues. Researchers worry they could be weaponized by election deniers.
A recent investigation into seized Puerto Rican voting machines found major security flaws, though there’s no evidence they were exploited to change election results.
10327
Matt Blaze @mattblaze.org · 11/08/2026
Videos of this years #VotingVillage talks should be up in the next week or so, AV gods willing. A couple people asked about my my "Intro to Election Security" slides. They don't make complete sense without the talk, but for the impatient, here they are: www.mattblaze.org/papers/vv202...
mattblaze.org
3162
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 10/08/2026
We don’t have a discord, no. But many of the issues with this particular machine were described in this talk from last year’s village. m.youtube.com/watch?v=nYL8...
m.youtube.com
14 Springall, Davis, Marks -- Simple Hacks, Daunting Recoveries vv25 d2s5
YouTube video by Voting Village @ DEF CON
061
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 03/08/2026
Voting Village returns to #defcon34! In addition to the voting machine lab, we have some terrific talks this year. Come hear about de-anonymizing ballots in Georgia, and the inside scoop on the (unpublished) Puerto Rican election systems report, among many others. info.defcon.org/defcon34/vil...
info.defcon.org
info.defcon.org
3268
Reposted by Matt Blaze
Patricia Aas 🐢🏳️‍🌈 @patigallardo.bsky.social · 03/08/2026
@hallny.bsky.social is speaking at the DEFCON Voting Village!!! «Watching Norway's Election» by Hallvard Nygard
DEF CON 34
Aug 7
12
Aug 8
14
Aug 9
16:30 PDT - 17:00
Watching Norway's Election
Hallvard Nygard
LVCC - L2 - W220 (Voting Village Talks)
Creator Talk/Panel
Voting Village
HT
1
084
Matt Blaze @mattblaze.org · 03/08/2026
Voting Village returns to #defcon34! In addition to the voting machine lab, we have some terrific talks this year. Come hear about de-anonymizing ballots in Georgia, and the inside scoop on the (unpublished) Puerto Rican election systems report, among many others. info.defcon.org/defcon34/vil...
info.defcon.org
info.defcon.org
3268
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 31/07/2026
(The ADA, weirdly, doesn’t generally apply to election polling places).
191
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 31/07/2026
Ironically, the biggest accessibility benefit when Philly switched to a BMD-based system was that the new machines were so heavy and cumbersome that they had to make sure all polling stations were wheelchair accessible, because there was no other way to bring the machines in.
1123
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 31/07/2026
The solution for voters who need BMDs are BMDs. Just as the solution for voters who need any other assistance is to provide it as best possible.
161
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 31/07/2026
Again, I’m not saying that undetectable software-based fraud with a BMD system is EASY or LIKELY. And the burden should be on those making claims to support them. But it is possible. And the problem is completely avoided simply by using hand-marked ballots (and RLAs).
171
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 31/07/2026
The ability to refute (or confirm) claims that an election was stolen via malicious software seems self-evidently important these days. BMD-based systems deny us this.
1101
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 31/07/2026
There are non-software-independent elections systems in use today, and the best we can do is “do the best we can”. But we can do better than that. It’s unfathomable to me why, in 2026, anyone would deploy a new system that isn’t software independent.
171
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 31/07/2026
The problem is that complex software (and automation generally) is useful, but also inherently untrustworthy. And this is a problem that has existed well before computers were used in elections.
131
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 31/07/2026
That’s simply not true. In a system with hand-marked paper ballots, you can examine the ballots and have complete confidence that no software defect affected the election. With BMD based ballots, however, the ballots are suspect because they were produced with software.
151
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 31/07/2026
Tina Peters, as kooky as she is, knows all this full well. She was an election official before she embarked on her life of crime. She knows there is no practical way to make major changes to election equipment or procedures 3 months before a general election. This is theatre.
0121
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 31/07/2026
- CISA has no authority to force sates to do anything about election operations and neither, for that matter, does the rest of the executive branch. This is why Trump's elections executive orders keep being stopped in court or ignored.
2161
Reposted by Matt Blaze
Matt Blaze @mattblaze.org · 31/07/2026
A few notes: - Meeting with CISA is not a high bar and doesn't indicate much. - Getting rid of BMDs is a good idea, but no equipment is going to change before the midterms. It's almost August. - Full hand counts is simply not practical in most US jurisdiction, but RLAs provide similar assurance.
2153
Matt Blaze @mattblaze.org · 29/07/2026
Sen. Joe McCarthy notoriously smeared those who invoked their rights before his committee as “fifth amendment communists”. I suppose Rand Paul will talk about “fifth amendment scientists” now.
2183
Matt Blaze @mattblaze.org · 28/07/2026
We have an AWESOME lineup (if I do say so myself) for the Voting Village this year. Sneak peak of the schedule soon. Watch this space.
2443