Oncast Mix · Night Shift

Four data leaks hit crypto and finance

· Fact-checked before it aired. Unconfirmed claims from this segment are not shown.

Four data-breach disclosures were reported on Oct. 28, 2026: Coinbase said a third-party analytics vendor, Amplitude, exposed some customers' contact information while funds were unaffected; South Korean crypto exchange Bithumb confirmed a customer-data leak; and Korean financial firms Mirae Asset Global Investments and Daishin Securities also disclosed breaches, with Daishin saying 38,490 customers' data was leaked.

Fact-check

VERIFIED TRUE

Four data-breach disclosures were reported on Oct. 28, 2026: Coinbase said a third-party analytics vendor, Amplitude, exposed some customers' contact information while funds were unaffected; South Korean crypto exchange Bithumb confirmed a customer-data leak; and Korean financial firms Mirae Asset Global Investments and Daishin Securities also disclosed breaches, with Daishin saying 38,490 customers' data was leaked.

4 data leaks reported today: 1. Coinbase's vendor Amplitude exposed some users’ contact data (funds unaffected). 2. Bithumb (Korea) had user data leaks. In TradFi, two securities firms in Korea leaked data: 3. Mirae Asset 4. Daishin Securities You can't prevent a leak, but

Original post · CZ 🔶 BNB (@cz_binance)

[coindesk.com](https://www.coindesk.com/tech/2026/10/28/coinbase-says-customer-funds-are-safe-after-third-party-vendor-exposes-customer-contact-info), [en.yna.c

Sources

What the hosts said

SIt's Night Shift, crypto never sleeps, and tonight it's leaking.
EFour data leaks in one day. CZ, the Binance co-founder, posted the list on X about an hour ago.
SNumber one is Coinbase. According to CZ's list, a vendor called Amplitude exposed some users' contact info.
EFunds unaffected. Coinbase was clear on that. It says it's names and contact details, not wallets.
SThen Bithumb in Korea, and two Korean securities firms, Mirae Asset and Daishin.
EDaishin said almost forty thousand customers were hit. That's not a rounding error.
SNow, who's posting this? The founder of Binance, listing a rival's bad day.
EFair, but he also listed Korean firms with no obvious Binance rivalry. His point is the pattern.
SThe pattern is the vendor. If the list is right, Coinbase wasn't hacked directly. A third party was.
EExactly. You can run a perfect vault and still lose on the analytics tool you bolted on.
SAnd contact data isn't harmless. That's how phishing emails get convincing.
EAgreed. If your name and email leak, expect a very polite fake support message.
SHis post cuts off right at 'you can't prevent a leak, but'. I'd love to hear the rest of that sentence.
EOne reply just said 'Stay SAFU against data leaks.' Binance's own slogan, turned into a leak warning. Honestly, decent timing.

Cite this story as https://oncast.fm/story/1793165763990-mix-show_open-four-data-leaks-hit-crypto-and-finance. Fact-check by Oncast. Cite the original sources above too.

Listen live on Oncast