Kei Oda spent 16 years trading bonds for Goldman Sachs — a life that eventually bored him. That was when he turned to cryptocurrency.

Kei Oda spent 16 years trading bonds for Goldman Sachs — a life that eventually bored him. That was when he turned to cryptocurrency.
Kei Oda spent 16 years trading bonds for Goldman Sachs — a life that eventually bored him. That was when he turned to cryptocurrency.
Kei Oda spent 16 years trading bonds for Goldman Sachs — a life that eventually bored him. That was when he turned to cryptocurrency.
Kei Oda is the head of Japan and the Asia-Pacific region for Quantstamp, a Web3 security firm that audits smart contracts and develops blockchain security solutions.
Kei spent 16 years trading bonds at Goldman Sachs before stumbling into cryptocurrencies out of boredom. He tells Magazine he was induced by the ability to trade Bitcoin and other assets around the clock.
He has since fallen down the rabbit hole, even finding a job in the industry.
So, I was actually a bond trader for 16 years before joining crypto.
You know, we used to talk about Bitcoin when I was still trading bonds. I didn’t really understand it or believe in it, to be honest, but when I left my job in 2016 and tried to get into the startup space, what dawned on me once I left was that, having been a trader, you do have a long-term focus, but you also are very, very short-term in terms of how you trade, what you do day to day, minute to minute, and what ended up happening was, I would get bored very easily.

Former FTX CEO Sam Bankman-Fried's bail was revoked on Aug. 11 after he was found to be trying to contact witnesses in the case and malign witness credibility.
Former FTX CEO Sam Bankman-Fried's bail was revoked on Aug. 11 after he was found to be trying to contact witnesses in the case and malign witness credibility.
Binance regional markets head Richard Teng insists that, despite regulatory scrutiny, the company has no parallels to collapsed exchange FTX.
Indian crypto platforms could attain similar status as authorized dealers (similar to banks) under the guidelines of the Indian Central Bank RBI.
Indian crypto platforms could attain similar status as authorized dealers (similar to banks) under the guidelines of the Indian Central Bank RBI.
BTC price weakness shows as Bitcoin analysts debate the likelihood of a return toward $20,000.
The country has introduced a non-obligatory Responsible Influence Certificate for those promoting crypto.
The price of Solana (SOL) has plunged more than 6% the last 24 hours, amid fears that bankrupt crypto exchange FTX may soon liquidate its significant portions of the token and other Solana-affiliated crypto assets.
The price of Solana has fallen 6% to $18.38 in the last 24 hours. Source: CoinGeckoAccording to a combination of data from Solscan, which has added up the value of the three publicly available FTX cold storage wallets, the FTX estate holds a combined $1.5 billion in crypto assets on the Solana network.
Of that weighty figure, Solana tokens account for just $128 million.
The rest of the amount is comprised of numerous Solana-based altcoins such as Wrapped Bitcoin (WBTC), Maps token (MAPS), Serum (SRM) and a number of other tokens colloquially referred to as “Sam coins” — a jest at the former FTX CEO Sam Bankman-Fried.
The total sum of Solana-based tokens on FTX Cold Storage #1 wallet. Source: SolscanStill, the idea that liquidators may soon unleash $128 million worth of SOL and hundreds of millions worth of other SOL-affiliated tokens onto the market hasn’t inspired much confidence in the market.

The price of Solana has plunged as the market fears a large FTX sell-off, however, it seems unlikely that the now-defunct exchange will dump all of its holdings at once.
The price of Solana has plunged as the market fears a large FTX sell-off, however, it seems unlikely that the now-defunct exchange will dump all of its holdings at once.
Offchain Labs co-founder Ed Felten said there were one or two fraud challenges submitted on a version of Arbitrum running on the Ethereum proof-of-work fork after the Merge, which was defeated.
Not a single fraud proof has been submitted on Arbitrum since it first launched its mainnet with the built-in security feature in August 2021, according to Ed Felten, co-founder and chief scientist of the Arbitrum-building Offchain Labs.
Operating as an Ethereum layer-2, Arbitrum’s interactive, multi-round fraud proofs work by allowing a layer-1 verifier contract to decide whether the challenger’s fraud-proof submission is valid. If so, the fraudulent validator’s stake is slashed.
Fraud proofs are submitted by challenging validators when it considers another validator to have fraudulently or otherwise incorrectly assembled an incoming batch of transactions into the next block.
However, Arbitrum’s mainnet is yet to see a fraud-proof attempt let alone a successful challenge, Felten told Cointelegraph at Korean Blockchain Week on Sept. 4:
“Not on mainnet. We did have one or two on Ethereum proof-of-work (POW). After the Merge, [...] there was a version of Arbitrum running on the Ethereum POW fork and somebody did try to steal all the data and there was a successful challenge which defeated that.”
Ava Labs is testing a high-throughput framework that will enable developers to build their own virtual machines.
Blockchains need to become interoperable in order for the industry to truly flourish and several innovations will accelerate the ecosystem towards it, say executives.
The “fake deposit” attack enables bad actors to execute a transfer where the requested value is larger than what the user actually owns.
Ethereum staking protocol Lido Finance has assured both Lido DAO (LDO) and staked-Ether (stETH) tokens remain safe despite hackers allegedly exploiting a known security flaw in LDO’s token contract.
Lido didn’t confirm any exploits, but acknowledged the security flaw was known and reassured LDO and stETH funds remain safe in response to a Sept. 10 post by blockchain security firm SlowMist.
SlowMist said LDO’s flawed token contract allows bad actors to facilitate “fake deposit” attacks on exchanges because LDO’s token contract enables users to execute transactions even where they don’t have sufficient funds. This code deviates from the Ethereum Request for Comment 20 (ERC-20) token standard, according to SlowMist.
However, Lido Finance argued the flaw is built into all ERC-20 tokens — not just Lido’s LDO token:
SlowMist said the “fake deposit” attacks came from LDO’s token contract executing transfers where the value is larger than what the user actually owns, triggering a false return as opposed to reverting the transaction. While the firm said Lido's token contract has recently been exploited via this attack, no on-chain evidence was provided.
