1. The Core Reality

Most users think scams look like:

• Obvious fake websites

• Suspicious links

• Poor design

  
  

In reality:

Key Insight

You don’t get hacked. You authorize the scam yourself.

2. What Is a Scam Transaction?

A scam transaction is:

Unlike traditional hacks:

• No password is stolen

• No system is broken

  
  

Instead:

• You approve access

• The contract executes

  
  

3. The Core Mechanism: Token Approval

Most scams rely on one function:

What happens:

1. You connect your wallet

2. You sign a transaction

3. You grant permission to a contract

4. The contract gains access to your tokens

   
   

Critical Concept

Approval does NOT move funds immediately. It gives permission to move them later.

4. Common Scam Transaction Types

1. Unlimited Token Approval

What it does:

• Grants full access to your tokens

  
  

What happens next:

• Contract drains your wallet

  
  

Why it works:

• Users don’t read permissions

  
  

2. Fake Claim / Airdrop Scam

Setup:

• “You are eligible for rewards”

• Click → connect wallet → sign

  
  

Reality:

• You approve a malicious contract

  
  

3. Permit Signature Scam

What it does:

• Uses signature instead of on-chain approval

  
  

Why dangerous:

• No gas fee → looks harmless

• Still grants access

  
  

4. Malicious Swap Contract

What it does:

• Pretends to be a DEX

• Executes hidden logic

  
  

Result:

• Funds redirected instead of swapped

  
  

5. Phishing UI + Real Contract

Setup:

• Looks like a real protocol

• Uses similar UI

  
  

Reality:

• Different contract address

• Same interaction flow

  
  

5. Why Users Fall for It

1. Blind Signing

• Users approve without reading

  
  

2. Trusting UI Instead of Contract

• Interface looks real

• Contract is not

  
  

3. Urgency & FOMO

• “Claim now”

• “Limited time”

  
  

4. Lack of Understanding

• Users don’t understand permissions

  
  

6. What Actually Happens On-Chain

Step-by-Step Breakdown

1. User signs approval

2. Contract receives permission

3. Attacker triggers transfer

4. Funds move out instantly

   
   

Important

The blockchain sees this as:

• A valid transaction

• Authorized by the user

👉 No reversal possible

7. Real Warning Signs

Red Flags Before Signing

• Unfamiliar contract address

• Unlimited token approval request

• Signature request with unclear purpose

• Unexpected pop-ups

• “Claim reward” prompts from unknown sources

  
  

8. How to Protect Yourself

Before Signing

• Verify the website URL

• Check contract address

• Understand what you’re approving

  
  

During Signing

• Read transaction details

• Avoid unlimited approvals when possible

  
  

After Signing

• Use tools like:

  • Revoke.cash

• Revoke unnecessary permissions

  
  

9. Operator Framework

Before signing any transaction, ask:

1. What am I approving?

2. Which contract is interacting?

3. Do I trust this contract?

4. What can this contract do after approval?

If unclear, do not proceed.

10. Real Insight

Most DeFi scams are not technical exploits. They are permission exploits.

The attacker does not break the system.They use the system exactly as designed.

11. Final Takeaway

Scam transactions succeed because:

• Users sign blindly

• Permissions are misunderstood

• Interfaces are trusted over contracts