[Blog Post] Flickr: Zero User-Interaction Account Takeover 👉 security.lauritz-holtmann.de… 👉 hackerone.com/reports/134208… #appsec #sso #aws #cognito #flickr #bugbounty

Looking forward to Nullcon next week 🤩 RSVP ahead of time to secure your spot on the leaderboard right from the start! h1.community/e/m66bay/

Welcoming Germany @Hacker0x01 Club as our Community Sponsor at Nullcon Berlin 2026! A community driven by bug bounty research, shared discoveries, and technical curiosity. Register now: nullcon.net/event/nullcon-be… #NullconBerlin2026 #HackerOne #BugBounty #SecurityResearch

A built-in "copy program guidelines and scope as markdown" feature for #bugbounty platforms such as @Hacker0x01 and @intigriti would be a real game changer. Until platforms implement, I decided to vibe code a Chromium Extension for that: github.com/lauritzh/bug-boun… #bugbountytips

Final Call 📢 In einer Woche startet das siebte #BugBounty #Meetup des deutschen HackerOne-Clubs - die Warteliste ist noch bis Mittwoch geöffnet!

That's a wrap on H1-030 in Berlin. When the world's best security researchers come together, great things happen for everyone. Thank you, @PayPal, for the partnership. One mission. Keep the internet safe. You don’t have to be at the event to be part of the program. Check out how to get involved in PayPal's public program here: bit.ly/3SroeHE

An incredible week of creativity, collaboration, and impact from the global security researcher community. Alongside @PayPal, you showed up and delivered. The work at this event helps keep customer data safe. Congrats to our winners: MVHs: alexbirsan, 82af5ddffbb795 Exterminator: ahacker1 Eradicator: oag Eliminators: alexbirsan, 82af5ddffbb795 #H1030 #TogetherWeHitHarder

H1-030 with @PayPal x @Hacker0x01 in Berlin was a blast! 💥 piped.video/watch?v=4KQXSjOT… #TogetherWeHitHarder #BugBounty

Last week, I joined a special educational #BugBounty event in Iceland, hosted by a private program and @Hacker0x01 🇮🇸 Two intense days of knowledge sharing, meeting old and new friends, exploring Reykjavík - and even spotting whales and dolphins.🤯 Grateful for this experience!

Seems that wp2shell PoCs are now floating around the internet, so we've published our blog post including our research methodology for finding the bug as well as a deep dive into the chain itself - slcyber.io/research-center/e…

leHACK 2026, c’était une vraie fête 🇫🇷 I had an awesome time in #Paris for this year's edition of @_leHACK_ , "Brave New World". It was a great conference - my first time attending - with great talks, a mini LHE hosted by @yeswehack with @PUMA as the target, and meeting friends.

I'll be around in #Paris at @_leHACK_ over the next few days. Do not hesitate to say "hi" if you bump into me or ping me if you want to have a chat about #BugBounty-related things! :)

Impressive Chain 🤯