Microsoft Security Response Center

@wtm_offensi Congrats!

Very very pleased! Thank you very much @secbughunter , @Microsoft and @msftsecresponse. If there will be a next year, I promise to bring my A-game and good health 😀🫶🏻 #ZeroDayQuest

Day 2 of #ZeroDayQuest brought even more hacking, problem-solving, and unforgettable moments. We then went to Carmine’s for incredible food and even better conversation, connecting over vulnerabilities, defense strategies, and a shared passion for protecting customers. Tonight, we're wrapping up with closing ceremonies and a reception at the Space Needle.

Nothing beats the energy at #ZeroDayQuest2026. 🚀 @msftsecresponse #Microsoft #MSRC #ZDQ #SecurityResearch

All those XSS payloads… and @secbughunter still beat them by just handing over a cookie 🍪😄 Day 2 of #ZeroDayQuest @msftsecresponse

Had such a fun night at Carmine’s yesterday with some brilliant minds! Good food, great conversations, and even better company. #ZeroDayQuest @msftsecresponse

@dhiralpatel94 😂

Day 1 of the Zero Day Quest Onsite Hacking Event is in the books and we’ve kicked off Day 2. We welcomed top security researchers from around the world to Microsoft’s Redmond campus for a day of live hacking, collaboration, and connection. Researchers worked side-by-side with Microsoft engineers and product teams to identify vulnerabilities across our AI and cloud platforms. Lots of amazing reports and discussions flowed throughout the day with MSRC, product teams, and the researchers themselves all driving security forward together. We wrapped the day with a Seattle Kraken vs. Tampa Bay Lightning game in Seattle (tough loss, but the vibes were strong!). We’re incredibly grateful to the security researcher community. Your work makes a real impact in helping protect customers. #ZeroDayQuest

They put us on the jumbotron at Climate Pledge Arena 😭🏒 #ZeroDayQuest @msftsecresponse

@dhiralpatel94 We take our swag very seriously. 😄 The shoes were designed with security researchers in mind. 🔥

Hands down the best swag! 🔥 @msftsecresponse put real thought into these #ZeroDayQuest

Today, we’re welcoming top security researchers from around the world to Microsoft’s Redmond campus for the first official day of the Zero Day Quest Onsite Hacking Event. They’ll collaborate with Microsoft engineers and product teams to uncover vulnerabilities across our AI and cloud platforms over the next two days. We’re thankful for the security researcher community and the impact their work has in helping protect customers. #ZeroDayQuest

@niraj1mahajan Let's go day 2!

An incredible start to Zero Day Quest 2026! 🔥 So happy to be back for my second year. A big thank you to @secbughunter and the @msftsecresponse team for the warm welcome and the surprise gift! 🎁 #ZDQ #ZeroDayQuest2026 #ZeroDayQuest #MSRC #Microsoft

We’re excited to welcome some of the world’s top security researchers to Zero Day Quest 2026 🎉 We kicked off the onsite hacking event with bowling, followed by dinner and drinks with incredible views. It’s the start of a full week of security research, collaboration with Microsoft teams, and social events including a Kraken hockey game, a brunch cruise, and more. We’re grateful to every researcher who qualified and joined us in person, as well as those participating remotely. Their work and partnership with Microsoft help protect customers and communities around the world. #ZeroDayQuest

@Patrosi73 Nice work on this! Congratulations.

i got my first ever CVE acknowledgement today! and it's on a Windows Notepad RCE of all things :D CVE-2026-20841 this wouldve been the second ever notepad CVE but MSRC decided to classify it under the first one from a month back it shouldve been seperate imo but im still glad :)

@Ky0toFu Thanks for all your hard work and collaboration, and of course a big congrats!

Grateful to @msftsecresponse for the $15,000 bounty! Rewarded for an Important Elevation of Privilege (EoP) vulnerability report. The speed of their triage and bounty payout is truly astonishing. #BugBounty #InfoSec

@seamoun 🎉

Excited for the upcoming Microsoft Zero Day Quest!🔥 🔥 🔥 Special thanks to @secbughunter and the @msftsecresponse team for the surprise gift and warm welcome!😘😍🥰 Wishing all researchers a successful season ahead!🥳🥳🥳 #ZeroDayQuest

Planning to join us at BlueHat Redmond this May? Registration is open, but it closes March 31. Submit your application to attend now: aka.ms/bluehatreg

@freefirex2 Congratulations on your first CVE!

I caught my first CVE :D msrc.microsoft.com/update-guide/e… Blog post inbound at TrustedSec.com tomorrow!

@4ndr3w6S Turns out hype just quietly turns into responsibility somewhere after 30.

The three stages of hype: 🎮 Teens/20s: Nintendo Power & WWE Magazine arrived!!! 🛒 30s: Costco coupon book arrived!! 💻 40s: Patch Tuesday arrived (@msftsecresponse). I don’t know what happened either 🫠

I've spent the last couple of months moonlighting on the MSRC bounty team to experience our December “In Scope by Default” change firsthand. Huge thanks to the talented, creative security researchers helping keep customers safe.