Joined February 2014
42 Photos and videos
22 Sep 2023
Google(Chromium) suddenly decided to pay me for a UI Spoofing bug reported 3 years that had been idle, and from reward potential to no potential to potential. Ok thanks?
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28 Jul 2022
This #privacy audit looks like the first LeaveHomeSafe #pentest ever, way below commercial apps: Broken SSL validation, SD Card Leaks, 2FA Logic bypass, Screenshot leaks, several Face Recognition artifacts, etc. 7asecurity.com/blog/2022/07/…

Serious vulnerabilities have been found in the Hong Kong government's LeaveHomeSafe COVID-19 app. @7aSecurity recently conducted a security audit that discovered numerous flaws that allow interception of the LeaveHomeSafe app and its backend servers. opentech.fund/news/7asecurit…
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Confirmed! Masato Kinugawa demonstrated a 3-bug chain of injection, misconfiguration and sandbox escape on Microsoft Teams to earn $150K and 15 Master of Pwn points.
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10 May 2022
New writing about the story of 3 bug bounty reports in which I chain low severity bugs together for higher impact and less known browser tricks. Includes CSS injection, Self-XSS, Drag-Drop XSS, Cookie Bomb, Login-Logout-CSRF, and more... medium.com/@renwa/the-underr…
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27 Apr 2022
After 5 years of work, security.txt is officially an RFC. I am pleased to announce RFC 9116: rfc-editor.org/rfc/rfc9116. I would like to use this opportunity to thank those who made this possible. Thank you. ❤️
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16 Apr 2022
We found a way to spoof ENS domains and were awarded a $15k bug bounty by @ensdomains 👇Check out the write-up medium.com/@hacxyk/how-we-sp…
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20 Jan 2022
Why do we need NFT on social media??
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11 Aug 2021
Replying to @garethheyes
Also function solve(obj, property){ if(typeof obj != 'function') { obj(property).innerHTML = '<img src=1 onerror="alert(`You win`)">'; } else { alert('You must try harder than that.'); } }
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I've been meaning to create a blog for some time now, and I finally did it! For its first post I wrote about a vulnerability that allowed an attacker to leak the full URL of cross-origin redirects on Google Chrome, check it out! blog.lbherrera.me/posts/appc…
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23 Apr 2021
New Video! Binary Exploitation 0x02 Why you should Close Your Files youtu.be/6SA6S9Ca5-U
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19 Jan 2021
Untrusted Types just got a new UI with better filtering options and features thanks to @ThomasOrlita! Check it out! github.com/filedescriptor/un…
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