Bugbounty

• Hunting weak DKIM keys for fun, profit and RedBull 26 Nov
• Exploiting Gmail's ARC implementation flaws 25 Nov
• Stored XSS on 5.000+ Dutch websites 28 Jan

• Hacking the Dutch Government 22 Jun

• Finding a 4 million ticket data leak 29 Jul

• Root Privilege Escalation on a Shared Webserver 20 May