@JasonGeffner

I’ve moved to Bluesky — https://xitter.cf/t.co/Lpz3RZMp3U

 Seattle, WA
Joined April 2012
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  • Followers1.8K
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Learn how Microsoft scales Dynamic Application Security Testing (DAST) with automation. Check out Jason Geffner's blog post and BlueHat talk: ➡️MSRC blog: msrc.microsoft.com/blog/2025… ➡️BlueHat talk: youtube.com/watch?v=kfuOzDwv…

Blog MSRC | Microsoft Security Response Center

Microsoft Security Response Center Blog

microsoft.com
Microsoft Security Response Center
@msftsecresponse21 Jan 2025
To ensure the security of Microsoft's web services and protect our customers, we're using innovative solutions to automate Dynamic Application Security Testing (DAST) at scale. This effort targets thousands of internal and external API web services across Microsoft’s portfolio of 1st party services, which are applications or services that are created, owned, and managed by Microsoft itself. Learn more in our blog post from Jason Geffner, Principal Security Architect at Microsoft: msrc.microsoft.com/blog/2025…
Azure Confidential Container (with DAST Tools)

ALT Azure Confidential Container (with DAST Tools)

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To ensure the security of Microsoft's web services and protect our customers, we're using innovative solutions to automate Dynamic Application Security Testing (DAST) at scale. This effort targets thousands of internal and external API web services across Microsoft’s portfolio of 1st party services, which are applications or services that are created, owned, and managed by Microsoft itself. Learn more in our blog post from Jason Geffner, Principal Security Architect at Microsoft: msrc.microsoft.com/blog/2025…
Azure Confidential Container (with DAST Tools)

ALT Azure Confidential Container (with DAST Tools)

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📣SPEAKER ANNOUNCEMENT📣 Jason Geffner (@JasonGeffner), Principal Security Architect, Microsoft, will be presenting a talk titled “How Microsoft is Scaling DAST” at #BlueHat. Jason is an information security professional with an extensive history in application security, risk management, malware analysis, threat intelligence, incident response command, endpoint security, security automation, vendor security management, and security research & development.
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We’re sharing our discovery & analysis of four vulnerabilities in Perforce Server, including a critical vulnerability that could give unauthenticated remote attackers complete control over unpatched systems & connected infra. Patches available: msft.it/6013indnt

Patching Perforce perforations: Critical RCE vulnerability discovered in Perforce Helix Core Server...

Four unauthenticated remotely exploitable vulnerabilities in source code management platform Perforce Helix Core Server have been remediated.

microsoft.com
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DEADLINE EXTENDED!!!! ⏰⚠️🙌⏳🚨➡️ The application to attend #BlueHat October 2023 has been extended to Friday, September 8 at midnight Pacific Time. We hope you can join us from October 11-12, 2023 in Redmond, WA, US. Submit your application today: msft.it/60179ZRCF
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#BlueHat is back! We are thrilled to announce (msft.it/6013dPMjf) that the next @MSFTBlueHat conference will be Feb 8-9, 2023, on the Microsoft Campus in Redmond, WA. Call for Papers is now open at msft.it/6014dPMjA. More details to come!
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Jason Geffner retweeted
Angie Jones
@techgirl190826 Aug 2022
Someone asked for advice on how to navigate tech as a woman. Here are my tips. Ladies, feel free to add more.
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Introducing the Microsoft Offensive Research and Security Engineering (MORSE) team. Within it are red, blue, and green teams—each with a different role to play—helping MORSE aggressively battle security threats. Learn more: msft.it/6014jzYnM #InfoSec #PenTesting

MORSE security team takes proactive approach to finding bugs

See how the Microsoft Offensive Research Security Engineering (MORSE) team tracks and prevents ransomware attacks.

news.microsoft.com
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Jason Geffner retweeted
WIRED
@WIRED3 Aug 2022
What's it like to be responsible for a billion people's digital security? Just ask the company's Morse researchers. wired.trib.al/plZOeHf

The Microsoft Team Racing to Catch Bugs Before They Happen

What's it like to be responsible for a billion people's digital security? Just ask the company's Morse researchers.

wired.com
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Jason Geffner retweeted
Jared DeMott@JaredDeMott21 Apr 2022
Who wants to work with us in @msftsecresponse ?? :) Come join the brilliant folks in #MSRC careers.microsoft.com/us/en/… Also, I hear we're bringing back the epic #BlackHat party this year... :)
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During his inaugural address in 2019, Zelensky told lawmakers: “I do not want my picture in your offices: the President is not an icon, an idol or a portrait. Hang your kids' photos instead, and look at them each time you are making a decision.”
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Jason Geffner retweeted
qntm@qntm9 Jan 2022
Threw together an adversarial version of Wordle. Good luck qntm.org/files/wordle/index.…

Absurdle

An adversarial version of Wordle

qntm.org
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Jason Geffner retweeted
HyperDbg@HyperDbg8 Jul 2021
Finally, we arrived! 🥳🤩 But just one step before releasing HyperDbg. It's now available for tests. Please test it and provide us with your valuable feedback and possible bugs. GitHub: github.com/HyperDbg/HyperDbg Build & Install: docs.hyperdbg.com/getting-st…
HyperDbg's Schrödinger cat

ALT HyperDbg's Schrödinger cat

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Jason Geffner retweeted
Chris Krebs
@C_C_Krebs4 Jul 2021
Ugh. I watch this garbage bc it’s important to know what the superspreaders of disinfo are saying. This one single individual is responsible for an embarrassing assault on democracy. He doesn’t give a shit about America. He only cares about himself. We suffer in the meantime.
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Want to mentor the next generation of cyber pros? BlackGirlsHack is looking for mentors in all areas of cybersecurity to meet once a month to help provide direction to the next generation of cyber pros. Don’t let them make our same mistakes blackgirlshack/mentor #bethechange
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Jason Geffner retweeted
r0da@r0da__15 Jun 2021
Well, after all this time, here is my writeup on VMP 3.x Virtualization whereisr0da.github.io/blog/p…

🔥 Quick look around VMP 3.x - Part 3 : Virtualization

0 - ⚠️ IMPORTANT NOTE This article explain how VMProtect works, not how to crack a VMP protected software. I’m not talking about any kind of Licensing System provided by VMP, or a developped one...

whereisr0da.github.io
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Jason Geffner retweeted
Scott Piper
@0xdabbad008 Jun 2021
We're looking for practitioner focused talks for @fwdcloudsec. We're planning on mostly 20-minute lightning talks, which means you have something to present for that long! fwdcloudsec.org/cfp.html Here's a thread of ideas: 1/n
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Here's a more experience reverse engineer job (you will poke at cheats). Location is US, UK, Canada, Romania, etc. (any country/province/state where we can hire). We can shitpoast on Slack together. #infosecjobs ea.gr8people.com/jobs/165239…
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The elusive entry level reverse engineering job just dropped. "Associate Reverse Engineer" in our anti-cheat team. Ignore the location, we can get by as long as you are in a country where we can hire (e.g., US, Canada, UK, Romania, etc.). #infosecjobs ea.gr8people.com/jobs/165132…
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Jason Geffner retweeted
Aurora
@aurora_inno30 Mar 2021
Trucking is the backbone of the global economy, but it can be a very dangerous job. Today, we’re announcing we’ll be the official technology partner of @VolvoGroup, a brand long known for and trusted in safety, to develop and deliver autonomous trucks: aurora.tech/blog/volvo-taps-…
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