Rick Grassmann

(formerly Aßmann)

IT security specialist

I am an OSCP certified ethical hacker with deep technical knowledge about web application and network security. Using advanced manual and automated penetration testing techniques I will find the vulnerabilities in your websites, applications, infrastructure and mobile apps.

Projects as a penetration tester

Execution of over 100 penetration tests

60%

Testing web applications

Execution according to OWASP Testing-Guide. Analysis of Single Page apps, Rest-APIs, authentication, static web pages etc.

20%

Network analysis

Scans of large company networks. Review of Firewall configuration.

10%

Review of OS configurations

Security assessment of Windows and Linux systems, web servers, VPNs, mail servers etc. Recommendations for server hardening.

10%

Testing mobile apps (Android, iOS) and fatclients (Windows)

Lokal authentication, secure data storage, API calls

Companies

rasotec

Cyber Security

rasotec.com

IT security consultant

SAYUBI

Software for restaurants

sayubi.com

fullstack developer