Andrew Kapaldo

Andrew Kapaldo

Security researcher & CTF enthusiast

CTF Writeups

CTF Writeups

heap3

Competition:
Challenge:
Date: March 29, 2026

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heap2

Competition:
Challenge:
Date: March 28, 2026

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heap1

Competition:
Challenge:
Date: March 28, 2026

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heap0

Competition:
Challenge:
Date: March 28, 2026

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StegoRSA

Competition:
Challenge:
Date: March 28, 2026

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MiniRSA

Competition:
Challenge:
Date: March 28, 2026

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EvenRSACanBeBroken

Competition:
Challenge:
Date: March 28, 2026

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bytemancy3

Competition:
Challenge:
Date: March 22, 2026

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SudoMakeMeASandwich

Competition:
Challenge:
Date: March 22, 2026

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PrinterShares

Competition:
Challenge:
Date: March 22, 2026

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PingCMD

Competition:
Challenge:
Date: March 22, 2026

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PieceByPiece

Competition:
Challenge:
Date: March 22, 2026

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MyGit

Competition:
Challenge:
Date: March 22, 2026

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AbsoluteNano

Competition:
Challenge:
Date: March 22, 2026

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bytemancy2

Competition:
Challenge:
Date: March 21, 2026

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Bytemancy1

Competition:
Challenge:
Date: March 21, 2026

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Bytemancy0

Competition:
Challenge:
Date: March 21, 2026

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When Hearts Collide

Competition:
Challenge:
Date: February 17, 2026

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ValenFind

Competition:
Challenge:
Date: February 17, 2026

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Try Heart Me

Competition:
Challenge:
Date: February 17, 2026

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Speed Chat

Competition:
Challenge:
Date: February 17, 2026

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Love Letter Locker

Competition:
Challenge:
Date: February 17, 2026

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Deep Into My Heart

Competition:
Challenge:
Date: February 17, 2026

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Cupids Matchmaker

Competition:
Challenge:
Date: February 17, 2026

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Cupid Bot

Competition:
Challenge:
Date: February 17, 2026

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Corp Website

Competition:
Challenge:
Date: February 17, 2026

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Week6

Competition:
Challenge:
Date: January 31, 2026

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Week5

Competition:
Challenge:
Date: January 31, 2026

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Week4

Competition:
Challenge:
Date: December 15, 2025

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Week3

Competition:
Challenge:
Date: December 11, 2025

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Week2

Competition:
Challenge:
Date: December 1, 2025

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Week1

Competition:
Challenge:
Date: December 1, 2025

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Webshellz

Competition:
Challenge:
Date: November 26, 2025

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Verify You Are Human

Competition:
Challenge:
Date: November 26, 2025

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VX-Underground

Competition:
Challenge:
Date: November 26, 2025

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Trust Me

Competition:
Challenge:
Date: November 26, 2025

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Trashcan

Competition:
Challenge:
Date: November 26, 2025

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Trapped

Competition:
Challenge:
Date: November 26, 2025

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Threat Actor Support Line

Competition:
Challenge:
Date: November 26, 2025

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Tabbys Date

Competition:
Challenge:
Date: November 26, 2025

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Spaghetti

Competition:
Challenge:
Date: November 26, 2025

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Sigma Linter

Competition:
Challenge:
Date: November 26, 2025

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Sandy

Competition:
Challenge:
Date: November 26, 2025

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Root Canal

Competition:
Challenge:
Date: November 26, 2025

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Phasing Through Printers

Competition:
Challenge:
Date: November 26, 2025

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NetSupport

Competition:
Challenge:
Date: November 26, 2025

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Maximum Sound

Competition:
Challenge:
Date: November 26, 2025

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Lizard

Competition:
Challenge:
Date: November 26, 2025

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I Forgot

Competition:
Challenge:
Date: November 26, 2025

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For Greatness

Competition:
Challenge:
Date: November 26, 2025

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Follow The Money The Sequel

Competition:
Challenge:
Date: November 26, 2025

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Follow The Money

Competition:
Challenge:
Date: November 26, 2025

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Flag Checker

Competition:
Challenge:
Date: November 26, 2025

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Emotional

Competition:
Challenge:
Date: November 26, 2025

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Darcy

Competition:
Challenge:
Date: November 26, 2025

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Bussing Around

Competition:
Challenge:
Date: November 26, 2025

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Beyblade

Competition:
Challenge:
Date: November 26, 2025

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Arika

Competition:
Challenge:
Date: November 26, 2025

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Angler

Competition:
Challenge:
Date: November 26, 2025

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XMDR

Competition:
Challenge:
Date: November 26, 2025

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Recent Posts

heap3

2 minute read

⚒️ Heap 3

heap2

2 minute read

⚒️ Heap 2

heap1

1 minute read

⚒️ Heap 1

heap0

1 minute read

⚒️ Heap 0

StegoRSA

less than 1 minute read

🔐 StegoRSA

MiniRSA

1 minute read

🔐 Mini RSA

EvenRSACanBeBroken

1 minute read

🔐 Even RSA Can Be Broken???

bytemancy3

3 minute read

⚒️ Bytemancy 3

SudoMakeMeASandwich

less than 1 minute read

📦 SUDO MAKE ME A SANDWICH

PrinterShares

1 minute read

📦 Printer Shares

PingCMD

less than 1 minute read

📦 ping-cmd

PieceByPiece

less than 1 minute read

📦 Piece by Piece

MyGit

1 minute read

📦 My Git

AbsoluteNano

less than 1 minute read

📦 Absolute Nano

bytemancy2

1 minute read

⚒️ Bytemancy 2

Bytemancy1

1 minute read

⚒️ Bytemancy 1

Bytemancy0

less than 1 minute read

⚒️ Bytemancy 0

When Hearts Collide

2 minute read

🌐 Love at First Breach 2026 - When Hearts Collide

ValenFind

2 minute read

🌐 Love at First Breach 2026 - Valenfind

Try Heart Me

1 minute read

🌐 Love at First Breach 2026 - TryHeartMe

Speed Chat

1 minute read

🌐 Love at First Breach 2026 - Speed Chat

Love Letter Locker

1 minute read

🌐 Love at First Breach 2026 - Love Letter Locker

Deep Into My Heart

1 minute read

🌐 Love at First Breach 2026 - Deep Into my Heart

Cupids Matchmaker

less than 1 minute read

🌐 Love at First Breach 2026 - Cupid’s Matchmaker

Cupid Bot

1 minute read

🤖 Love at First Breach 2026 - CupidBot

Corp Website

1 minute read

🌐 Love at First Breach 2026 - Corp Website

Week6

2 minute read

🌐 Week 6

Week5

2 minute read

🌐 Week 5

Week4

2 minute read

🤖 Week 4

Week3

18 minute read

🔍 Week 3

Week2

3 minute read

🌐 Week 2

Week1

3 minute read

🕵️ Week 1

Webshellz

less than 1 minute read

🔍 Webshellz

Verify You Are Human

4 minute read

🐞 Verify You Are Human

VX-Underground

1 minute read

📦 vx-underground

Trust Me

less than 1 minute read

📦 Trust Me

Trashcan

2 minute read

🔍 Trashcan

Trapped

less than 1 minute read

⚒️ Trapped

Threat Actor Support Line

less than 1 minute read

📦 Threat Actor Support Line

Tabbys Date

less than 1 minute read

🔍 Tabby’s Date

Spaghetti

1 minute read

🐞 Spaghetti

Sigma Linter

less than 1 minute read

🌐 Sigma Linter

Sandy

1 minute read

🐞 SANDY

Root Canal

2 minute read

📦 Root Canal

Phasing Through Printers

1 minute read

📦 Phasing Through Printers

NetSupport

less than 1 minute read

🐞 NetSupport

Maximum Sound

less than 1 minute read

🔈 Maximum Sound

Lizard

3 minute read

🐞 Lizard.

I Forgot

2 minute read

🔍 I Forgot

For Greatness

less than 1 minute read

🐞 For Greatness

Follow The Money The Sequel

1 minute read

🕵️ Follow The Money: The Sequel

Follow The Money

1 minute read

🕵️ Follow The Money

Flag Checker

less than 1 minute read

🌐 Flag Checker

Emotional

less than 1 minute read

🌐 Emotional

Darcy

less than 1 minute read

🔍 Darcy

Bussing Around

less than 1 minute read

🔍 Bussing Around

Beyblade

less than 1 minute read

🔍 Beyblade

Arika

less than 1 minute read

🌐 ARIKA

Angler

1 minute read

📦 Angler

XMDR

less than 1 minute read

📦 XMDR