(TORONTO) (ONLINE) "Dumb" Smart Contracts! Opportunity to make or lose millions!! DecemberDec 13 2022 18:30 - 19:30 America/Toronto

Please note that this is not a Solidity beginer level talk. We will dive into the deep end of some of the "dumb" things (hindsight is 20-20) that were coded/implemented in smart contracts. These bugs resulted in the loss of 100s of millions of dollars (not a typo) worth of assets being stolen by hackers in real life.

You don't have to be a hacker to make millions though! By learning some of the advanced concepts in smart contract programming and participating in bug bounty programs, you can make millions of dollars (again not a typo) and multiple people have made millions.

On the other side, if you are the creator of the smart contract, you can apply these techniques so that your smart contract (your organization) doesn't lose millions.

6.30 pm EST - M&G
6.35 pm EST - Presentation starts
6.50 pm EST - Q&A

Video and Slides will be shared for those who RSVP Yes. if you can't make it due to time zone differences please RSVP yes to get the content offline.

Please get in touch with me via meetup messaging if you have some questions.


Quick Recap - What are Smart Contracts
Is Smart Contracts a new idea?
Why bugs in smart contracts are a serious matter
Why it is difficult to write good smart contracts
What about audits? You mean audits??
How to find bugs in smart contracts
How to work with, "hack" bug bounty programs!
Some of Knowns "dumb" bugs in smart contracts
- Reentrancy
- Poorly exception handling
- Dependency on the order of execution
- Indirect execution of unknown code
- Calculation errors in the output token amount
- Interface naming issues
- We will cover a few more if time permits

Register at following link:

Import to Google Calendar
  • Schedule
  • Guests
  • Attendance
  • Forecast
  • Comments

Weather data is currently not available for this location

Weather Report

Today stec_replace_today_date



stec_replace_current_temp °stec_replace_current_temp_units

Wind stec_replace_current_wind stec_replace_current_wind_units stec_replace_current_wind_direction

Humidity stec_replace_current_humidity %

Feels like stec_replace_current_feels_like °stec_replace_current_temp_units






Next 24 Hours

Powered by openweathermap.org