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Lennaert89

@lennaert89.bsky.social

816 followers 285 following 23 posts

Interested in infosec / hacking / osint / dfir / bugbounty! Formerly Zerocopter.com, currently Head of Triage at Intigriti.com Head CSIRT over at divd.nl Hacknotcrime Advocate Aut viam inveniam aut faciam.

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Mark Russinovich @markrussinovich.bsky.social · 30/05/2025

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BSides Leeds @bsidesleeds.bsky.social · 27/05/2025

⚫ Sponsor Announcement — Welcome Damn Good Security! ⚫ We’re excited to welcome Damn Good Security as a Community Sponsor for BSides Leeds 2025! Events like ours wouldn't be possible without the support of incredible sponsors — massive thank you to the DGS team!

Community sponsor announcement with BSides Leeds and Damn Good Security logos

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Lennaert89 @lennaert89.bsky.social · 14/03/2025

Ready to kick off @1ns0mn1h4ck.bsky.social day 2! Hit me up if you want to connect and chat #bugbounty, send a message or find me in my @intigriti.com hoodie. Got some cool stickers to hand out!

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Lennaert89 @lennaert89.bsky.social · 13/03/2025

Attending the amazing @1ns0mn1h4ck.bsky.social to represent @intigriti.com today! Hit me up if you want to chat. I've got stickers and invite codes to hand out 😉.

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Nicolas Grégoire @agarri.fr · 06/12/2024

Tickets for next year’s Dutch hacker camp are on sale! 🤑 I went to all of the camps (HAL, WTH, HAR, OHM, SHA, MCH and WHY) since 2001 and don’t plan to stop ⛺️

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Stef @stefvandop.nl · 27/11/2024

I want to do a little promotion here as well: For the dutch people following me: last year me and 2 other folks from HITB dutch crew started orangecon.nl. Its a nonprofit which focusses on knowledge sharing with affordable trainings followed by a very affordable conference. Do check it out please!

orangecon.nl

OrangeCon

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trein @reindaelman.bsky.social · 24/11/2024

CVE-2024-8856 is out! This is my 7th CVE, but my first critical one. TL;DR Unauthenticated RCE via Arbitrary File Upload (thanks to some very questionable file type validation). Already posted on X, but wanted something on my profile... 😅 #BugBounty #Security Write-up: hacked.be/posts/CVE-20...