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Security audit of smart contracts in TON: key mistakes and tips

ID: 92778cd1-dc7d-5af6-8ca1-8787e0706139

STIX ID: report--92778cd1-dc7d-5af6-8ca1-8787e0706139

Feed Name: Security Boulevard

Date Published: 2025-02-20

Date Updated: 2026-04-22

Author: Sergey Sobolev

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This blog post from Positive Web3 outlines key security pitfalls and auditing guidance for TON smart contracts (FunC and Tact), covering message chains and asynchronous execution, bounced-message handling, gas and storage limits, random number concerns, code upgrades, and data management, and provides practical examples and a checklist of best practices for auditors and developers.

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