Siren

I’m Irem Kuyucu, founder of RasterSec. I do security research and responsible disclosure. Vulnerabilities reported to Ford, Revolut, Citrix, Verily, ConnectPay, Sennheiser, Ignitis and OpenAI, plus CVE-2025-29331.

I hold PenTest+, CKA (Certified Kubernetes Administrator) and Okta Certified Professional, and I’m working towards OSCP. Day to day I do penetration testing, malware analysis, security engineering and write code in C, Go, TypeScript and shell.

Hobbies: painting, traveling, web design/aesthetics and electronics. Based in Lithuania, EU.

Links

• Hire me to hack: rastersec.com
• Personal site: posterchild.today
• GitHub: sausagenoods
• LinkedIn: installgentoo
• Hire me to engineer: posterchild.systems

Posts

• 2025-10-14 How to get free, unsurveilled internet at Turkish airports and public spaces
• 2024-08-06 Establishing persistence using extended attributes on Linux
• 2023-09-03 XMPP enumeration and hardening
• 2023-05-02 Hacking VILNIUS TECH: university locks out students over refusal to use proprietary software
• 2022-07-24 How to write database migrations for Go
• 2022-01-28 Listening on multiple ports using select() in C
• 2021-12-19 Accepting Monero (XMR) payments using MoneroPay
• 2021-09-14 Migrating a Matrix server (Synapse)
• 2021-03-14 Hacking a province in Turkey through Laravel
• 2021-01-07 Turkish Citizenship Database v2 (Kids Edition)
• 2020-05-24 Drawing ncurses on remote terminals
• 2019-10-18 A very ghetto Raspberry Pi setup