Lennaert89
@lennaert89.bsky.social
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.
Formerly Zerocopter.com, currently Head of Triage at Intigriti.com
Head CSIRT over at divd.nl
Hacknotcrime Advocate
Aut viam inveniam aut faciam.
Reposted by Lennaert89
Reposted by Lennaert89
⚫ 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!
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!
May 27, 2025 at 2:01 PM
⚫ 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!
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!
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!
March 14, 2025 at 8:01 AM
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!
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 😉.
Hit me up if you want to chat. I've got stickers and invite codes to hand out 😉.
March 13, 2025 at 10:27 AM
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 😉.
Hit me up if you want to chat. I've got stickers and invite codes to hand out 😉.
Reposted by Lennaert89
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 ⛺️
I went to all of the camps (HAL, WTH, HAR, OHM, SHA, MCH and WHY) since 2001 and don’t plan to stop ⛺️
December 6, 2024 at 7:38 AM
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 ⛺️
I went to all of the camps (HAL, WTH, HAR, OHM, SHA, MCH and WHY) since 2001 and don’t plan to stop ⛺️
Reposted by Lennaert89
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!
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
orangecon.nl
November 27, 2024 at 5:53 PM
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!
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!
Reposted by Lennaert89
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...
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...
CVE-2024-8856 - Unauthenticated RCE via Arbitrary File Upload
Hacked.be | Cybersecurity blog by Rein Daelman.
hacked.be
November 24, 2024 at 2:49 PM
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...
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...
Had fun finishing the black ops 6 campaign this weekend!
November 25, 2024 at 12:14 AM
Had fun finishing the black ops 6 campaign this weekend!
Pff it’s far too early to be on a train
November 19, 2024 at 6:23 AM
Pff it’s far too early to be on a train
Love seeing this place get more active, I’ll try to to share a bit more on here
November 17, 2024 at 6:58 PM
Love seeing this place get more active, I’ll try to to share a bit more on here
So anyone on here talking about #bugbounty?
September 22, 2023 at 3:25 PM
So anyone on here talking about #bugbounty?