Adrian Hetman (Page 2)

Adrian Hetman

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Does salary on remote work should depend on where you live?

Does salary on remote work should depend on where you live?

As everybody on LinkedIn, I get invites and job proposition every so often. Most sound similar i.e., "Join our new exciting DeFi project. We will change how DeFi works!". But one got my attention lately because of one sentence. "As for the salary, the current amount

Bridges are burning

Bridges are burning

Blockchain is an innovative and futuristic technology. It enables different opportunities for its users. There are many takes how blockchain should behave and what it should offer. With many different approaches to the subject, we see few main chains of blockchain being in use, like Ethereum, BSC, Polygon, or Bitcoin.

Journey Update after 80 days

Journey Update after 80 days

Only 19 days to go for me to finish the 100 days of blogging challenge! It feels so close yet still far. I'm not going to lie, I had some moments of doubts during these 80 days, but each 10-day pitstop helps me see what I'm

How many times you need to re-check your code?

How many times you need to re-check your code?

ApeRocket was hacked on BSC and on Polygon today. Hacker stole in total ~$1.3M (883 BNB + 521 ETH). What was the reason for the hack? Both were flash-loan enabled attacks, and both had flawed vault minting reward logic. I won't go into the details of both hacks,

Does being an auditor an easy job?

Does being an auditor an easy job?

Since I started working in the Blockchain space, I've dreamed of becoming a smart contract auditor. I wanted to work in cybersecurity, but I also loved blockchain. Combining the two was a dream job for me. Finally after few years, I managed to join CertiK and become Smart

No audit, no problem?

No audit, no problem?

ChainSwap was hacked, and due to that hack, $8M was stolen from various projects using the ChainSwap bridge. It was the second hack of ChainSwap. The first one happened few days before and resulted in $800K being stolen. For the latest hack, I'm not going to dive into

Anyswap got hacked

Anyswap got hacked

Today, Anyswap tweeted an exploit was detected in the v3 prototype. > An exploit was detected in the new anyswap v3 prototype, all bridge funds used in v1/v2 are safe, a full post mortem will be released. Remedial action already in place for all exploited funds. LPs to v3

Why does China Central Bank fears Stablecoin?

Why does China Central Bank fears Stablecoin?

It was bound to happen. After Bitcoin Mining Ban [https://www.adrianhetman.com/chinas-crackdown-on-cryptocurrencies-continues/] and general crackdown of cryptocurrencies in China, The People’s Bank of China has expressed concern over the risk of Stablecoins. Bank of China states that Bitcoin and Stablecoins have become speculative tools that threaten financial

How I approach new code for an audit?

auditing Featured

How I approach new code for an audit?

I will lay down the most common, repeated things I do when starting a new audit. I'm not saying this is how things should be done, probably there are more efficient and better ways to approach a new audit, but that's how I've been

Unboxing Sharding

Unboxing Sharding

Yesterday we talked about Proof of Stake and Beacon Chain [https://www.adrianhetman.com/unboxing-ethereums-proof-of-stake/]. But to truly appreciate Beacon Chain, we need to talk about sharding. The main difficulty in achieving scalability that Blockchains (including Ethereum) currently face is that every node has to verify and execute every transaction.

Unboxing Ethereum's Proof of Stake

eth 2.0 Featured

Unboxing Ethereum's Proof of Stake

Proof of Stake is coming in big steps and is much closer to a full release than you can imagine. This article will cover what Proof of Stake (PoS) is and how it will work. Grab the popcorn 🍿 and ☕, and enjoy! What is PoS? Proof of Stake is the next

Unboxing Flash Loans

Unboxing Flash Loans

Everybody understands what regular loans are. You need to provide proof of income, reserves, or other information a bank may need to take one. There are, of course, uncollateralized loans where you don't need to put forward any collateral i.e., you don't need to provide

Can't wait For DeFi to hit mainstream

Can't wait For DeFi to hit mainstream

Recently I've been going through the process of acquiring my first ever apartment 🏠. I couldn't be happier as this means my hard work is finally paying off, and I can have my own place with my wife and have the next part of my life there.

70 day Journey Update

70 day Journey Update

The next milestone is completed! I've been feeling great about the whole challenge, and I'm happy 71 days ago I decided to start this journey. For the last two days, my posts weren't about Blockchain-related things, but they were still important topics I wanted

Unfinished Projects

Unfinished Projects

Today's article will be short due to me taking a much-needed break. Check my last post for more info [https://www.adrianhetman.com/work-life-balance-2/]. On Sunday or Monday will be a regular, blockchain-related article, I promise. Today I want to talk shortly about unfinished projects. Every one of

Work-life balance #2

Work-life balance #2

This article’s subject is exactly what I’m doing today and over the weekend. It won’t be a long post, I’m just gonna share my views on the balance in work and life. Work is important. It pays our bills, food, and hobbies, and maybe soon, travel

Unboxing front-running attack

Unboxing front-running attack

In today’s post we’re going to unbox another popular type of attack, front-running transactions. This type of attack takes different forms and can be used in various ways. One of the examples of front-running I explained recently during ERC20 approval unboxing [https://www.adrianhetman.com/unboxing-erc20-approve-issues/]. But first

Monthly DeFi Blood Batch report #2

Monthly DeFi Blood Batch report #2

DeFi didn’t had an easy month. In June we saw China crackdown on Bitcoin and crypto, cryptocurrency market went into bear market and there was staggering amount of hacks/exploits happening in DeFi. Let’s dive into the last topic. Below you will find a summary of all hacks

What happened to Merlin Lab?

What happened to Merlin Lab?

Today (29th of June), Merlin Lab was hacked, and $330k was stolen from the protocol. It is a third hack in the last month that has happened to Merlin. How the hack happened? From the Merlin Telegram Channel, we can read the following: > "The Merlin Dev team had

Unboxing re-entrancy attack

tutorial Featured

Unboxing re-entrancy attack

The most known vulnerability in Smart Contracts. The one that made the Ethereum do a hard fork and split between Ethereum and Ethereum Classic. When it was first unveiled, it was during a multimillion-dollar heist which led to the split mentioned above in the chain. Five years have passed since

How to keep going during a lack of motivation?

How to keep going during a lack of motivation?

Have you ever had a feeling to quit what were you doing? That it doesn't make sense? I know for sure I had. Hell, I'm having this feeling right now while typing these words. I sat down yesterday and today with a promise to write an

We're still early

We're still early

Today when I scrolled through twitter I encountered this tweet that got me thinking on two levels. > Gutenberg launched the printing press when 96% of the people in Europe were illiterate That's how it feels to be building in web3/crypto today It's just early

60 day journey update

60 day journey update

Hell yeah! 60% done! In the previous 10 day update, I stated I want to do a "fresh start". I wanted to write more articles I'm personally interested in and I can say, I'm doing exactly that! I thought of a new series, called

Unboxing ERC20 approve() issues

Unboxing ERC20 approve() issues

ERC20 Token standard is the most adapted standard in the Ethereum ecosystem. It is widely used and easy to use. Many users of Ethereum already know what ERC20 token does and what functions it does how. But there is one function in the standard implementation that causes the most problems

How Eleven.Finance got hacked?

How Eleven.Finance got hacked?

Eleven.finance, a yield aggregator on BSC and Polygon, was exploited for a total of $4.5M. Binance Smart Chain protocols don’t have an easy year will all of the recent hacks in last months happened on that chain. I won’t rant about BSC. I did that already