Placido

Junior

#15 The Netherlands

861 Total XP

7 Labs Completed 0 First Bloods 0 Streak 29 Best

Activity

84 active days in the last year

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Junior

Next Senior

861 / 2009 XP

Achievements

Streak Starter

Streak Master

Lab Rat

FTPCookie PoisoningSession TamperingBase64 EncodingPrivilege EscalationBrowser DevToolsClient-Side SecurityWeb ExploitationSecurity Through ObscurityView SourceInformation DisclosureBroken Access ControlWeb SecurityHTMLNmapNmap CommandsTelnetPort ScanningNetwork ReconnaissanceView Source CodeSource Code AnalysisCapture The FlagCTFCTF BasicsFlag SubmissionUUIDGetting StartedCyber Security FundamentalsAuthentication BypassBroken AuthenticationDeveloper ToolsLearning Path

Anonymous Easy

100 XP Dec 26, 2025

Hack the Cookie: Cookie Poisoning Attack Very Easy

50 XP Dec 20, 2025

Secrets in Source 2: Bypass Security Through Obscurity Very Easy

50 XP Dec 20, 2025

Nmap Commands Lab: Port Scanning to Privilege Escalation Very Easy

100 XP Nov 20, 2025

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

50 XP Sep 23, 2025

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

50 XP Sep 23, 2025

Hack the Login Very Easy

50 XP Sep 10, 2025

HTTP Header Manipulation: IP Spoofing 1

Manipulating Headers 1 XP May 21, 2025

Nmap Mastery: Dominate Network Scanning 3

Installing Nmap 1 XP Nov 08, 2025

Introduction to Nmap 1 XP Oct 01, 2025

Essential Nmap Scanning 1 XP Nov 08, 2025

HDNA Ethical Hacking Course 1

Course Summary 1 XP Apr 03, 2025

Hacking 101 1

The hacker mindset 1 XP Jul 01, 2026

Daily Hack Solved - Who got root +10 XP

1 week ago

Daily Hack Solved - ELF, not data +10 XP

1 week ago

Daily Hack Solved - Forge the group claim +10 XP

2 weeks ago

Daily Hack Solved - Find the reentrancy bug +10 XP

2 weeks ago

Daily Hack Solved - Two layers, one flag +10 XP

2 weeks ago

Active for 1 days

2 weeks ago

Daily Hack Solved - Open the app sandbox +10 XP

2 weeks ago

Daily Hack Solved - Find the SQLi probe +10 XP

2 weeks ago

Daily Hack Solved - Find the employer +10 XP

3 weeks ago

Active for 1 days

3 weeks ago

Daily Hack Solved - PNG, not TXT +10 XP

3 weeks ago

Daily Hack Solved - Find the hidden email +10 XP

3 weeks ago

Daily Hack Solved - Decode the beacon label +10 XP

3 weeks ago

Active for 1 days

4 weeks ago

Daily Hack Solved - Same handle everywhere +10 XP

4 weeks ago

Daily Hack Solved - CloudTrail anomaly +10 XP

1 month ago

Daily Hack Solved - Vigenere then base64 +10 XP

1 month ago

Daily Hack Solved - Read the JWT claim +10 XP

1 month ago

Daily Hack Solved - Find the hardcoded API key +10 XP

1 month ago

Daily Hack Solved - The GPG blob +10 XP

1 month ago

Daily Hack Solved - Hex back to text +10 XP

1 month ago

Daily Hack Solved - The hidden link +10 XP

1 month ago

Daily Hack Solved - Flip the debug flag +10 XP

1 month ago

Daily Hack Solved - Read the shell history +10 XP

1 month ago

Daily Hack Solved - Geolocate the photo +10 XP

1 month ago

Daily Hack Solved - Trace the port scan +10 XP

1 month ago

Daily Hack Solved - Unwrap the C2 beacon +10 XP

1 month ago

Daily Hack Solved - Forge the tier +10 XP

1 month ago

Active for 1 days

1 month ago

Daily Hack Solved - The DEX header +10 XP

1 month ago

Daily Hack Solved - The hidden system prompt +10 XP

1 month ago

Daily Hack Solved - Unshift the letters +10 XP

1 month ago

Daily Hack Solved - Mass assign yourself admin +10 XP

1 month ago

Active for 1 days

1 month ago

Daily Hack Solved - Dox the domain owner +10 XP

1 month ago

Daily Hack Solved - Spot the exfil +10 XP

1 month ago

Daily Hack Solved - Decode the calldata +10 XP

1 month ago

Daily Hack Solved - The none algorithm +10 XP

1 month ago

Daily Hack Solved - Find the SQL injection sink +10 XP

1 month ago

Active for 1 days

1 month ago

Daily Hack Solved - The comment leak +10 XP

1 month ago

Daily Hack Solved - One tap of base64 +10 XP

1 month ago

Daily Hack Solved - Leak the app admin token +10 XP

1 month ago

Daily Hack Solved - Check the history +10 XP

1 month ago

Daily Hack Solved - Trace the phish +10 XP

1 month ago

Chapter Completed - The hacker mindset +1 XP

2 months ago

Daily Hack Solved - Find the break-in +10 XP

2 months ago

Daily Hack Solved - Two-layer classic +10 XP

2 months ago

Active for 2 days

2 months ago

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