Coinbase changed how it stores crypto keys offline, Kraken said its teams hunt for weak spots every day, and OKX chief executive Star Xu proposed a shared alarm system for hacks, all within a day of the record $6.3 billion theft from Binance. The three venues moved on Friday, October 30, while Binance kept deposits and withdrawals shut and repeated that company funds will cover customer losses, per Reuters. Analysts blamed the attack on North Korea, citing patterns from earlier thefts attributed to its hackers, per Reuters.
Twenty minutes. That is all the warning the industry got.
The bulk of the $6.3 billion left Binance wallets in about 20 minutes late on Thursday, October 29, according to blockchain firms TRM Labs and Chainalysis, per Reuters. That window set the terms for everything after it: issuers racing to freeze stablecoins, rival venues checking their own locks, and executives arguing that the next response has to be coordinated rather than solo.
How rivals responded
Coinbase said it adjusted the systems that hold cryptocurrency keys offline, describing the step as precautionary, per Reuters. Kraken said it watches industry incidents for lessons it can feed into its own defenses, per Reuters. Franklin Templeton head of crypto Chris Perkins said the security problem needs fixing right away if crypto is to live up to its promise, per Reuters.
OKX went further than reassurance and pitched a build. Xu proposed a shared warning network that would let venues broadcast news of a breach at once, coordinate a fast response, and freeze suspect funds temporarily, per Reuters. A 20-minute drain leaves no room for phone calls and press statements. GSR chief legal and strategy officer Josh Riezman said the industry as a whole should not suffer material losses from the incident, even though Binance must deal with the exploit directly, per Reuters.
The drain and the freeze race
In an X post, Binance co-chief executive Richard Teng said the attack may have begun when an engineer's laptop was compromised, opening a path into the withdrawal-processing systems, per Reuters. The company later found further breaches, and software built to wipe evidence of the intrusion slowed the investigation, per Reuters. Security experts said social engineering, the trick of fooling a person into handing over access or secrets, may have played a part, per Reuters.
| Measure | Figure |
|---|---|
| Estimated theft from Binance | $6.3 billion |
| Time for the bulk of the drain | About 20 minutes |
| USDT frozen by Tether | Nearly $1.57 billion |
| USDC frozen by Circle | $800 million |
| Total frozen so far | About $3 billion |
| Bitcoin move on Thursday | Down more than 4% |
| Ether move on Thursday | Down more than 5% |
Tether froze $1.57 billion connected with Binance and Circle froze $800 million, per Reuters, taking the wider frozen total to about $3 billion. No issuer can freeze bitcoin or ether, since no single company controls those networks, per Reuters, which leaves roughly half the haul outside issuer reach. Chainalysis said the laundering methods looked new to its analysts, per Reuters.
The freeze race is now the story to watch. Every hour of delay gives laundering networks more room to move.
Readers tracking the original incident can compare this with Binance halts deposits and withdrawals, pledges to cover suspected hack losses, and the venue profiles on the OKX overview page.
Why it matters
A theft of this size would have rattled crypto on its own. It lands harder now because regulators under President Donald Trump are bringing digital assets further into mainstream finance, which lifts the cost of a failure for a sector with a long record of large hacks, per Reuters.
February 2025 gave the closest precedent: Bybit made clients whole within days of its $1.5 billion breach, yet has since recovered only $48.4 million of the stolen funds. Prices reflected the shock before they steadied: bitcoin fell more than 4% on Thursday and ether more than 5%, though both recovered some ground on Friday, per Reuters. MarketRadar's snapshot at 06:05 PKT on October 31 showed bitcoin near $77,467, up 0.71% on the day, and ether near $2,248, up 1.66%.
What to watch
- A reopening timetable from Binance for deposits and withdrawals.
- The post-mortem: how access was gained and what controls change.
- Whether other venues sign on to the OKX alert-system proposal.
- Movement in the frozen total past $3 billion as tracing continues.
Key points
- Coinbase adjusted offline key-storage systems as a precaution; Kraken said full-time teams hunt for flaws daily, per Reuters.
- OKX chief executive Star Xu proposed a shared real-time hack alert system for a fast, coordinated response, per Reuters.
- The bulk of the $6.3 billion theft drained in about 20 minutes late on October 29, per TRM Labs and Chainalysis via Reuters.
- Tether froze nearly $1.57 billion and Circle froze $800 million, taking the wider frozen total to about $3 billion, per Reuters.
- Bitcoin fell more than 4% and ether more than 5% on Thursday, then recovered some ground on Friday, per Reuters.
MarketRadar take
The rival response reads as damage control with a genuine idea inside it. Coinbase and Kraken moved to reassure, while the OKX alert proposal tackles the real bottleneck: a 20-minute drain beats any venue acting alone, because no single exchange can freeze funds that have already hopped to another venue or been swapped into coins no issuer controls. That coordination gap is exactly what the Binance timeline exposed, and it is why the proposal deserves more attention than the reassurance statements. Until Binance names a loss figure beyond the $6.3 billion estimate and a reopening date, the story stays open, and the unfrozen half of the haul is where the next headline will come from.
