Attack surfaces introduced by upgrades and migrations

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Web3 Fundamentals

Upgrading a Web3 project is like trying to change the tires on a racecar while it’s driving at 200 mph. Because blockchains are meant to be "permanent," developers use clever tricks to update code, but these tricks create unique backdoors for hackers.

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Web3 Fundamentals

Attack surfaces introduced by upgrades and migrations

Rewards

10+

5 Gems

25 XP

Steps

Read and Learn

Take the Quiz

0/4

The "Proxy" Concept

Since you can't change code once it's on the blockchain, developers use a Proxy. Think of the Proxy as a "Phone Operator" and the Logic as the "Department." Users call the Operator, who forwards the call to the Department. An upgrade just tells the Operator to forward calls to a new Department.

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Attack surfaces introduced by upgrades and migrations

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In Web3, what is a "Proxy" contract used for?

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