How much was lost in the TSR hack?

The TSR hack resulted in $2.5M in losses on June 01, 2026.

What attack technique was used in the TSR exploit?

The TSR exploit utilized Infinite Mint. Understanding this attack vector is critical for smart contract auditors and developers building secure DeFi protocols.

How can developers prevent similar smart contract attacks?

Preventing smart contract hacks requires a combination of secure coding practices, thorough security audits, and understanding common attack vectors like reentrancy, oracle manipulation, and access control flaws. Smart Contract Hacking (SCH) provides hands-on training to help developers and auditors identify and prevent vulnerabilities before deployment.

TSR Hack

TOTAL LOST $2.5M

Medium Jun 01, 2026 Infinite Mint bsc

Affected Chain bsc Incident surface

Recovered - No recovery reported

All-Time Rank #684 By amount stolen

Year 2026 Incident year

Incident Overview

BTSR (BTSR) is a cryptocurrency . BTSR has a current supply of 3,284,265.7536. The last known price of BTSR is 0.1085094 USD and is up 0.00 over the last 24 hours.

More information can be found at https://btsr.io/.

Incident Report

Protocol / Project TSR

Date of Incident June 01, 2026

Affected Chain(s) bsc

Attack Technique Infinite Mint

Classification Token & Share Accounting

Protocol Information

Smart Contract Language Solidity

Official Website btsr.io/

Protocol Twitter/X @btsr4

Market Context at Time of Hack

Protocol Links

What the Attacker Needed to Succeed

Understanding the prerequisites for this type of attack helps auditors identify protocols that are most at risk and helps developers build better defenses.

Technical Knowledge Deep understanding of infinite mint and Solidity and EVM internals

Capital Required Seed capital to cover gas and initial position setup

On-Chain Access Ability to interact with bsc smart contracts and deploy a custom exploit contract

Protocol Analysis Identification of the exploitable vulnerability in TSR's contract logic - root cause: token & share accounting

Execution Speed Precise transaction ordering and timing to exploit the vulnerability within a single atomic block

Obfuscation Plan A strategy to launder and move stolen funds - typically through mixers, cross-chain bridges, or decentralized DEX swaps to resist tracing

What Auditors Should Check

Could this have been caught in audit? Likely, with a thorough Infinite Mint audit checklist and test coverage

If you're auditing a protocol with similar architecture to TSR, these are the critical security checks that could have prevented this incident (June 2026).

Verify all logic paths related to Infinite Mint are guarded by proper access controls and input validation
Review privileged functions (owner, admin, governance) for potential abuse vectors - centralization risks should be documented and bounded with timelocks or multi-sigs

Master these auditing techniques with hands-on labs and real exploit scenarios in the Smart Contract Hacking course.

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Threat Assessment

Severity Level

MEDIUM

Attack Vector Infinite Mint
Root Cause Token & Share Accounting
Year 2026

Learn to Prevent the Next TSR

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