grehaus

Junior

#47 United States Top 4% Worldwide

1211 Total XP

11 Labs Completed 0 First Bloods 6 Streak 6 Best

+641 this week +861 this month

Activity

12 active days in the last year

Rank Progress

Junior

Next Senior

1211 / 2114 XP

Achievements

Streak Starter

Lab Rat

SSHIP SPOOFINGPHPLFIFTPJWT ManipulationSSH ExploitationLog InjectionPrivilege EscalationWeb SecurityLinux SecurityClient-Side SecuritySecurity Through ObscurityBrowser DevToolsView SourceInformation DisclosureBroken Access ControlHTMLNmapNmap CommandsTelnetPort ScanningNetwork ReconnaissanceCookie PoisoningSession TamperingBase64 EncodingWeb ExploitationView Source CodeSource Code AnalysisAuthentication BypassBroken AuthenticationDeveloper ToolsLearning PathCapture The FlagCTFCTF BasicsFlag SubmissionUUIDGetting StartedCyber Security Fundamentals

Cronpocalypse Easy

200 XP Oct 19, 2026

Spoof! Easy

100 XP Oct 19, 2026

Include me Easy

100 XP Oct 19, 2026

Anonymous Easy

100 XP Oct 19, 2026

Infiltrator Easy

200 XP Oct 17, 2026

Secrets in Source 2: Bypass Security Through Obscurity Very Easy

50 XP Sep 25, 2026

Nmap Commands Lab: Port Scanning to Privilege Escalation Very Easy

100 XP Jul 19, 2026

Hack the Cookie: Cookie Poisoning Attack Very Easy

50 XP Jul 19, 2026

Secrets in Source: View Source Code to Find the Flag Very Easy

50 XP Jul 19, 2026

Hack the Login Very Easy

50 XP Jul 19, 2026

Capture the Flag 101: Find and Submit Your First Flag Very Easy

50 XP Jul 19, 2026

Hacking 101 1

The hacker mindset 1 XP Oct 19, 2026

Flag Found - Password Cracking - Custom Wordlist Attack +100 XP

13 hours ago

Daily Hack Solved - The name that points nowhere +10 XP

13 hours ago

Daily Hack Solved - The folder that shipped itself +10 XP

1 day ago

Daily Hack Solved - One password, many doors +10 XP

2 days ago

Flag Found - Cronpocalypse +100 XP

3 days ago

Flag Found - Cronpocalypse +100 XP

3 days ago

Flag Found - Spoof! +100 XP

3 days ago

Flag Found - Include me +100 XP

3 days ago

Flag Found - Anonymous +100 XP

3 days ago

Chapter Completed - The hacker mindset +1 XP

3 days ago

Daily Hack Solved - The redaction that was a layer +10 XP

3 days ago

Daily Hack Solved - The role any repo can wear +10 XP

4 days ago

Flag Found - Infiltrator +100 XP

5 days ago

Flag Found - Infiltrator +100 XP

5 days ago

Daily Hack Solved - The note inside the tool +10 XP

5 days ago

Active for 1 days

2 weeks ago

Flag Found - Secrets in Source 2: Bypass Security Through Obscurity +50 XP

3 weeks ago

Active for 3 days

1 month ago

Flag Found - Nmap Commands Lab: Port Scanning to Privilege Escalation +50 XP

3 months ago

Flag Found - Nmap Commands Lab: Port Scanning to Privilege Escalation +50 XP

3 months ago

Flag Found - Hack the Cookie: Cookie Poisoning Attack +50 XP

3 months ago

Flag Found - Secrets in Source: View Source Code to Find the Flag +50 XP

3 months ago

Flag Found - Hack the Login +50 XP

3 months ago

Flag Found - Capture the Flag 101: Find and Submit Your First Flag +50 XP

3 months ago

Your Certificate is Ready!

View and share your Certificate of Achievement

View Certificate