Doyensec @Doyensec
Doyensec works at the intersection of software development and offensive engineering. We discover vulnerabilities others cannot, and help mitigate the risk. doyensec.com San Francisco / Warsaw Joined May 2016-
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We'd like to welcome our newest addition Marcelino Siles Rubia (@imarcex_)! Another success story from our #internship program! The future of #appsec is looking bright 😎 at #doyensec!
📢It's here! Part 2 of Norbert Szetei's (@73696e65) research into ksmbd. See how customized fuzzing & the appropriate sanitizers led to discovering 23 Linux kernel CVEs, including use-after-frees & out-of-bounds reads/writes. blog.doyensec.com/2025/09/02/ksm… #doyensec #appsec #security
📖Read about a real-world C# #cryptography vulnerability we've discovered in the wild in our latest blog post! No math required (unless you're into that sort of thing)! blog.doyensec.com/2025/08/19/tri… #doyensec #appsec #security #csharp
Are you located in the US/EU? passionate about #appsec? Maybe you follow #bugbountytips or are an avid #ctf player and are ready to take the next step. If so, we're looking for our next #intern, so consider applying today - hackers.doyensec.com. #doyensec #security #internship
🚨Security Advisories🚨: multiple vulnerabilities in Retool (@retool), including host header injection and CSRF - discovered by Doyensec and the Robinhood (@RobinhoodApp) Red team! docs.retool.com/disclosures/cv… docs.retool.com/disclosures/cv… #doyensec #appsec #security #retool #robinhood
Our latest 🚨Security Advisory🚨 includes multiple vulnerabilities affecting the immersed platform (@immersedXR). The findings include an RCE via Session Overwriting, an RCE via CSRF and a Privilege Escalation flaw. doyensec.com/resources/Doye… #doyensec #appsec #security
Several members of the @Doyensec team are heading to @TumpiConIT 🇮🇹 for our Norbert Szetei's (@73696e65) presentation on his awesome ksmbd security research. If you're around, make sure to talk to @lucacarettoni & the team! #doyensec #appsec #TumpiCon tumpicon.org
🚀We have just released a new Security Advisory for @NASA's CFITSIO library 🛰️. Click the link for details on the Heap Overflow, Type Confusion, Out-of-Bound Writes and other vulnerabilities discovered by our @a_denkiewicz ! doyensec.com/resources/Doye… #doyensec #appsec #security
Thanks to inspiration and support from @goteleport, #doyensec is proud to release the Security Policy Evaluation Framework, a tool for testing security policy engines! cc:@OpenPolicyAgent,@OpenFGA,@AWSSecurityInfo github.com/gravitational/… #appsec #rigo #cedar #openfga #security
🚨Just posted🚨: Learn about real-world API authorization vulnerabilities we frequently see with the slides from @tell1c0's recent presentation at @CONFidenceConf in Krakow. doyensec.com/resources/CONF… #doyensec #appsec #security
We'd like to welcome 👋@imarcex_ as our latest Application Security Intern. Welcome aboard! 🎉 #doyensec #appsec #internship
Attending @CONFidenceConf in Krakow 🇵🇱 this weekend? Be sure to check out our @tell1c0's presentation - API Authorization Antipatterns: confidence-conference.org/lecture-2025/#… #doyensec #appsec #confidencecon
Several members of the #doyensec team are here in Berlin 🇩🇪attending @offensive_con this weekend! Ping us or just say "hallo" in person, if you'd like to talk #appsec or grab a coffee. We're looking forward to some amazing talks! #offensivecon #security
We'd like to welcome the latest member of our team - Diego Perez, our new Application Security Intern! Welcome aboard! 🎉 #doyensec #appsec #security #internships
Going beyond SSO, our @lacerenza_fra decided to take a deep dive into SCIM in our latest blog post. Read it today to learn how including this user identity standard in your next test's scope can reap big rewards! blog.doyensec.com/2025/05/08/sci… #doyensec #appsec #security #scim
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