Binance's CZ Admits to Serious Security Failures

What CZ Admitted in His Own Words

Zhao's post ran four paragraphs. “No platform is unhackable, but that cannot be an excuse. Every incident exposes weaknesses that should have been prevented,” he wrote¹. That single sentence carries the whole admission: a record theft, and his own word for the cause. Some details stay embarrassing, he wrote. Binance would publish them anyway. The lessons, in his framing, reach past one exchange.

Zhao signed the post with a single title: shareholder. “As a shareholder, I expect Binance to be transparent about what went wrong, take responsibility, learn from all criticism, and make meaningful improvements,” he wrote¹. That word choice matters. Binance's co-chief executives run the company day to day. Zhao's largest public role this week was writing the sentence that graded their work.

The admission followed a run of interviews. Zhao told Yahoo Finance on Nov. 3 that "there's no 100% security," and that he “did not think it was going to be this big of magnitude, probably not”⁵. The same conversation carried a second emphasis. "All user funds are covered," Zhao said. "The users did not suffer any loss."

Two framings sat side by side that week. One post owned the failure outright. The earlier interview moved past it fast, toward the money already covered. Emphasis separates the two accounts more than fact does, since both describe the same hack. Star Xu read that gap and posted before Zhao's admission ever went up.

Why Star Xu Pushed Back Hard

Xu posted first, at 1:48 UTC on Nov. 4, three hours and 21 minutes before Zhao's admission². His target was the week of interviews, published before Zhao's own post existed. "I genuinely don't want to criticize a competitor during their crisis," Xu wrote. “What I really want is for us to work together with them to raise security standards and better protect the entire crypto industry.”

Xu kept writing. "The interview was full of bullshits," he said. “It was misleading, appeared to downplay their own responsibilities, and attempted to discredit traditional banks to make excuses for their own failures”². Specifics followed. Zhao argued that banks carry weaker security than exchanges, Xu's post said. He kept repeating that "only 2%" of funds left Binance, and Binance's own marketing campaigns kept running through the week.

Xu's sharpest line turned on a position Zhao has held for years. Binance runs on two co-chief executives, and Zhao has told reporters before that he stays out of daily operations. “I'm still the single largest shareholder of Binance, but I don't run Binance,” he told CoinDesk in June 2026⁶. That line is years old and consistent on the record. Xu's post called it, repeated through this crisis, a way of standing beside Binance's defense while staying outside its chain of command.

Binance's Recovery Numbers, Set Beside the Words

Richard Teng, Binance's co-chief executive, posted his own account on Nov. 3. “On 29 October, Binance was the target of one of the most sophisticated attacks the digital asset industry has ever seen,” Teng wrote. “~$6.34B in assets were impacted. We take full responsibility, and we're making it right”³.

Teng's numbers show real movement behind the words. "We set aside more than the full amount required," he wrote. "At this moment, 98% of impacted tokens have been replenished"³. A second figure sat beside the first. Binance says it had frozen or intercepted roughly $2.85 billion with law enforcement, issuers and blockchain intelligence firms⁴. Teng called that pace faster than banks could ever manage. Binance lost a record sum on Oct. 29. Its own account says most of that sum has already moved back.

Teng also announced a check on Binance's own story. An outside reviewer will examine the incident report line by line, he said, before Binance calls the matter closed⁴. That promise gives Zhao's admission a deadline. A reader can judge the words against the review once it lands, past this week's posts alone.

The review matters because Binance wrote its own incident report first. A company grading its own homework earns less trust than an outside check does. Teng's own numbers, after all, come from that same internal account³. An independent reviewer, publishing on a set date, would carry weight beyond either founder's post.

A Price Drop Star Xu Blamed on the Wrong Week

Xu's post reached beyond Binance. "Bitcoin reportedly fell from around $81,000 to $75,000 during the turmoil," he wrote, tying the drop to the hack's fallout². CoinDesk and KuCoin told a different story about the same day. Bitcoin sank below $76,000 and briefly touched $75,700 early Wednesday, both outlets reported, as results confirmed Democrats had won both chambers of Congress⁷⁸.

Its price climbed back to $78,300 once the vote count settled⁷. A clear outcome resolves political uncertainty, analyst Dick Lo told CoinDesk, and that is what traders priced back in.

Xu's post skips the election entirely. His number sits close enough to the real one that a reader could mistake an election swing for hack fallout. CoinDesk and KuCoin tie that same swing to Washington alone, by the record both outlets kept that day. A critic pressing for accountability still owes the same standard he asks of Zhao: check the number before you post it.

Two Billionaires, One Unsettled Question

Zhao's own words finally said what his earlier interview only hinted at. Xu's post, written hours before that admission, still lands a fair complaint. The man who called the hack a serious failure also spent the same week comparing bank security unfavorably. He leaned on a 2 percent figure that tells a smaller story than $6.34 billion does. Binance's recovery numbers answer part of that complaint in moved money rather than chosen words. The comparison to banks stays unanswered, and so does the question of who speaks for Binance when Zhao keeps saying someone else runs it. A reader weighing both founders' posts gets a confession and a critique. Each holds up under its own sourcing, pointed at two different parts of the same week.

By the numbers

• $6.34 billion: what Binance says its Oct. 29, 2026 hack cost, by Richard Teng's own account³.
• 98%: the share of affected tokens Binance says it had replenished by Nov. 3, 2026³.
• $2.85 billion: recovered through freezes and intercepts, Teng said, as of Nov. 3, 2026³⁴.
• 3 hours, 21 minutes: the gap between Star Xu's 1:48 UTC post and CZ's 5:09 UTC admission, both Nov. 4, 2026¹².
• $75,700: where Bitcoin bottomed early Wednesday as election results spread, CoinDesk reported⁷.
• $78,300: the price Bitcoin reached after its same-day rebound, CoinDesk reported⁷.
• $702.34: BNB's price as of 2026-11-04T11:55:26Z, CoinGecko said⁹.

What to watch

Teng says Binance will bring in an outside reviewer to check its own account of the breach. That report's publication date will show whether the exchange holds itself to the standard Zhao set in his own post. Watch whether Xu's call for shared, real-time alerts between exchanges gets a public answer from Binance. A joint system would outlast one week's argument between two founders. Xu's own number on Bitcoin's drop would show whether accountability runs in both directions, if corrected. Watch too for a second exchange naming the same standard Zhao set for himself. That kind of echo would turn one founder's post into an industry benchmark.

Sources

1. CZ, "A hack of this scale means serious security failures occurred...," post on X, Nov. 4, 2026, https://x.com/cz_binance/status/2117846768666755491
2. Star Xu, "I genuinely don't want to criticize a competitor during their crisis...," post on X, Nov. 4, 2026, https://x.com/star_okx/status/2117796074257830376
3. Richard Teng, "On 29 October, Binance was the target of one of the most sophisticated attacks...," post on X, Nov. 3, 2026, https://x.com/_RichardTeng/status/2117626871445921884
4. Henry Kanapi, "$2,850,000,000 in Crypto Involved in Binance Hack Frozen or Intercepted, Says CEO Richard Teng," The Daily Hodl, Nov. 4, 2026, https://dailyhodl.com/2026/11/04/2850000000-in-crypto-involved-in-binance-hack-frozen-or-intercepted-says-ceo-richard-teng/
5. Brian Sozzi, "Binance founder Changpeng Zhao addresses historic crypto hack: 'There's no 100% security'," Yahoo Finance, Nov. 3, 2026, https://finance.yahoo.com/markets/crypto/article/binance-founder-changpeng-zhao-addresses-historic-crypto-hack-theres-no-100-security-123427760.html
6. Nikhilesh De, "CZ, Binance founder, wants to clear up 'misunderstandings' about who he is," CoinDesk, June 24, 2026, https://www.coindesk.com/policy/2026/06/23/cz-binance-founder-wants-to-clear-up-misunderstandings-about-who-he-is
7. Omkar Godbole, "Bitcoin Knocks on $78,000 in V-Shaped Comeback as Midterm Uncertainty Fades," CoinDesk, Nov. 4, 2026, https://www.coindesk.com/markets/2026/11/04/bitcoin-knocks-on-usd78-000-in-v-shaped-comeback-as-midterm-uncertainty-fades
8. KuCoin, "Bitcoin Dips Below $76,000 Amid U.S. Midterm Election Results, Then Rebounds," Nov. 4, 2026, https://www.kucoin.com/news/flash/bitcoin-dips-below-76-000-amid-u-s-midterm-election-results-then-rebounds
9. CoinGecko, "Binance Coin (BNB) price," Nov. 4, 2026, https://www.coingecko.com/en/coins/binancecoin