Galicia, Spain | Self-taught security researcher and creative developer specializing in privacy-focused solutions, offensive security tools, and innovative open-source contributions. Active member of elhacker.net community since 2012.
Security: Vulnerability Research, Development, Cryptography
Platforms: Android, Linux
Technologies: Full-Stack, App development, CLI, Automation
| Project | Preview | Description |
|---|---|---|
| Panther |  | Privacy-focused Android browser |
| SOSCW |  | Linux Userland Distro for Hacking |
| Termux Hacking 101 |  | Book about Termux and Hacking |
| Dark Messenger |  | Anonymous and decentralized messaging app |
| invjsible |  | Hides data in plain sight with steganography |
| StartPage |  | WebApp to use as the home page for browsers |
| Kotlin APK Template |  | Compile Android APKs in 2 minutes - ZERO installation required |
| AIehnBOT |  | Injects a LLM response into foro.elhacker.net |
| Simple Arguments Parser |  | Create CLI tools (js, ts, rust, c++, bash) |
| Steel Spell Scale |  | Turn Based RPG |
| Vulnera |  | Run and manage multiple vulnerable server environments |
| Self Control |  | Control your Android device programatically without root (no PC) |
| TGBOT.sh |  | Run commands in a remote system using Telegram chat |
| nbmxbsf |  | General Purpouse Telegram Bot (engine) |
| Fast Framework |  | Javascript Framework (components, ts, jsx, router, vdom, ...) |
| Bug Writeups |  | SPA made with Fast Framework to post vulnerabilities I discovered |
- Open Source: 50+ open source public repositories, 800+ collective stars
- Research: Active CVE hunter and bug bounty participant
- Education: Author of technical Spanish cybersecurity literature
For professional inquiries, security research collaboration, or custom development:
- Email: stringmanolo@gmail.com
- Telegram: stringmanolo
- Linkedin: Manuel Varela Caldas
- X/Twitter: XSStringManolo
If my tools or research have helped you, consider supporting continued development:
| Method | Details |
|---|---|
| GitHub Sponsors |  |
| Stripe | Secure Payment |
| Monero (XMR) | 428z8183vxPDnvrU7TKpjmiYjqsknqZGVHzk458KZCnRNQWcfJbEXxd1BUfyQoRX1uPssnynN7KwMh2GMeWfK7BeFp1htMA |
All donations fund open-source security research and privacy tool development.