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BitUnits Crowdsale Audit Report.

1. Summary

BitUnits Crowdsale security audit report performed by Callisto Security Audit Department

2. In scope


the same as:

3. Findings

In total, 4 issues were reported including:

  • 1 medium severity issues.

  • 2 low severity issues.

  • 1 minor observation.

No critical security issues were found.

3.1. Crowdsale Price

Severity: medium


Taking into account the decimals and the rate set by the developers, if any token value is allocated for the crowdsale the investors will receive for every 1 ETC = 10.000.000 token which is the total supply of UNITS token.


Developers should set a different rate otherwise the maximum collected fund will be 1 ETC.

Code snippet

3.2. Sale Availability

Severity: low


In order for the investors to buy tokens the address 0x0 should be set with a certain amount of tokens to be sold, however 0x0 address is set with zero tokens.

The crowdsale won't work.

Code snippet

3.3. Token Transfer to Address 0x0.

Severity: low


Accidentally transferred to zero address tokens may be sold.

3.4. Extra checking.

Severity: minor observation


Extra checking in 90 and 100 lines. SafeMath library checks it anyway.

Code snippet


Those lines may be deleted.

4. Conclusion

The contract developers should consider the issues described above. the contract cannot be deployed.

5. Revealing audit reports

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