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-
Tweets600
-
Followers4K
-
Following9
-
Likes534
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
Gareth Heyes \u2028 @garethheyes
37K Followers 1K Following JavaScript for hackers: Learn to think like a hacker. https://t.co/e0aNEbEDk5
JS0N Haddix @Jhaddix
167K Followers 7K Following CEO, CISO, Trainer, Hacker, and Speaker. Cybersecurity + Hacking + AI + Sec Leadership @arcanuminfosec
pyn3rd @pyn3rd
13K Followers 605 Following Security Researcher&Red Team&Cloud Security. BlackHat&HITB&CanSecWest Speaker.
Nicolas Grégoire @Agarri_FR
27K Followers 630 Following Web hacker and Burp Suite Pro trainer Refer to https://t.co/D5tRH7U2hg for trainings Follow @MasteringBurp for free tips and tricks
Tuan Anh Nguyen⚡️... @haxor31337
15K Followers 2K Following 29 y/o Bug Bounty Hunter and Red Teamer at Viettel Cyber Security. Brand Ambassador @Hacker0x01 - Researcher Spotlight @Bugcrowd
Clint Gibler @clintgibler
22K Followers 563 Following 🗡️ Head of Security Research @semgrep 📚 Creator of https://t.co/xwtIAI0CuJ newsletter
Bug Bounty Reports Ex... @gregxsunday
52K Followers 616 Following Grzegorz Niedziela - a hacker who documents his hacking journey by creating and curating the best content about bug bounty and offensive security.
Soroush Dalili @irsdl
20K Followers 909 Following Hacker (ethical), web appsec specialist, trainer, tools builder & apps breaker, @SecProjectLtd founder 🕸️https://t.co/YipuTcYnWc🥷 🍏A dad-joke maker🍐
Md Ismail Šojal �... @0x0SojalSec
30K Followers 5K Following Cyber_Security_Re-searcher || 0SINT || Malware Analysis II Pwn || Ai Re-searcher || Project @AIStrikeSec || 0ld Accounts Suspended @0xSojalSec ||
Luca Carettoni @lucacarettoni
4K Followers 802 Following Application Security @Doyensec | Build with Security
Stefano Zanero @raistolo
19K Followers 2K Following Tinkerer, security geek, recovering entrepreneur, full professor @polimi, frequent flyer, pilot (follow https://t.co/19HknsE6EE). He/him 🏳️🌈
Justin Elze @HackingLZ
65K Followers 5K Following CTO @TrustedSec | Former Optiv/SecureWorks/Accuvant Labs/Redspin | Race cars
伍默 @_wumo
165 Followers 2K Following 灵活就业的理论派玩家 一言不合移除关注者 我主要会移除和拉黑：非技术从业者 三无号（没有喜欢 ， 没有原创推文 ，没有回复），不正常账号 ， 我不认可者。 一般不会回关，如果你的内容我觉得认可，我会回关。 总之，非常主观，如果你想解释，可以直接私信。 发的内容包含技术和我的部分日常。
aseel @aloufi_asm
4 Followers 310 Following
Dipanjan Das @sher10ckk
203 Followers 1K Following PhD@SecLab, UCSB | Microsoft Offensive Research and Security Engineering (MORSE)
Allele Security Intel... @alleleintel
709 Followers 490 Following Allele Security Intelligence is an independent company specializing in Information Security research.
Fares Rafat @faresrafaat0
1 Followers 109 Following
Angelboy @scwuaptx
5K Followers 932 Following Senior Security Researcher at @d3vc0r3 MSRC 2024/2025 MVR Top 100
Qanon @qanonfree
4 Followers 4K Following
Kienzx203 @viet_kien16450
92 Followers 3K Following
tomate podrido @tomatepodrido41
25 Followers 597 Following
0x4141 @jobaa23
100 Followers 672 Following
AmlFerri @amlferri88
0 Followers 54 Following
Marilù nera @SebastianHag1
4 Followers 123 Following
AppSec Village @AppSec_Village
11K Followers 6K Following AppSec Village @DEFCON & @RSAConference A volunteer-run, non-profit focused on education, awareness, and community. Founded by @erezyalon and @tzionit411.
Malek Majeed @MajeedMale15600
1 Followers 73 Following
Chuck @Chuck6703880517
1 Followers 109 Following
Haany @haanynooh
9 Followers 646 Following
SK @SK_SKSKz
9 Followers 136 Following
Hassan Habib @HassanH49210279
0 Followers 22 Following
Luca Palumbo @Luca_Palumbo_
33 Followers 87 Following AI MSc student @unipisa | BSc in Physics | CTF player @fibonhack
Mj_crypto @Mjcrypto5
4 Followers 377 Following
Tarik @Tw4vesX
51 Followers 363 Following
DavidTheMaster @BigDavidTheGood
38 Followers 748 Following
Avinash kumar @Avinashkroy
190 Followers 640 Following
mubassirpatel @Mubassirpatel1
262 Followers 1K Following
Jasmine Andres @JakeHarrison70
175 Followers 1K Following In God I Trust 🙏 Tx📍| Army🇺🇲🇺🇸 Joshua 1:9 ✝️
Kavin Prasanth @0x0k4v1nFF
2 Followers 123 Following
Aman Subedi @amsubedi2
5 Followers 660 Following
Vimalatidhyan Ethical... @vimalatidh39414
0 Followers 31 Following
Steve Campbell @lpha3ch0
3K Followers 345 Following Retired Navy Aviation Electrician. Patriot. Hacker. Interested in AppSec, Firearms, Harleys. Author of “Bash Shell Scripting for Pentesters”.
קודקוד סייב... @kodkodcyber
2K Followers 537 Following Security Researcher: Vulnerabilities in Web Applications, Cloud, AI | Threat Intelligence | Malware Analysis | OSINT
mkaif26 @mkaif29
0 Followers 44 Following
NaVeeS @naveeeees
175 Followers 852 Following
shiyv' liu @AvalonSec12
0 Followers 11 Following
GP Security @GP_Sec
9 Followers 280 Following
nox @n0x_xyz
0 Followers 152 Following
𝙈 𝙊 𝙎 𝙏 �... @Mostafa__maklad
32 Followers 1K Following Pentester | Malware Lover | Join me in the land of peace
insomnia1102 @KwanAleister
6 Followers 227 Following
Luca Carettoni @lucacarettoni
4K Followers 802 Following Application Security @Doyensec | Build with Security
Teleport @goteleport
4K Followers 2K Following The easiest, most secure way to access and protect all your infrastructure.
Brumens @Brumens2
2K Followers 498 Following @yeswehack employee 🪖 | Bug Bounty hunter🐝 & coffee lover ☕ I'm a big fan of breaking into all sorts of things 🌐
zi0Black @zi0Black
772 Followers 278 Following Security @AptosLabs | Former @ShielderSec | CTF @JBZTeam | UNIMI | I love to turn IoT devices into expensive paperweights✌🏿
Ekoparty | Hacking ev... @ekoparty
25K Followers 160 Following The coolest #hacking conference and meeting point in LATAM since 2001 🏴☠️
John Villamil @day6reak
718 Followers 308 FollowingTrends for United States
You might like
