Crypto exchanges make it easy to buy and hold digital assets, and most customers never think twice about leaving their coins there. That trust took a hit on Oct. 29, when attackers stole roughly $6.3B from Binance, the world's largest cryptocurrency exchange, in what is now the biggest crypto theft on record.
The fallout reached well beyond Binance's own customers. Bitcoin slipped, and the publicly traded companies most tied to crypto sold off hard on Friday, even though none of them was hacked.
How the hack hit crypto stocks
Bitcoin fell 2.3% to around $76.8K on Friday after Binance disclosed the breach, while Ethereum slipped 1.2% to about $2.2K, according to FactSet data.
Crypto stocks fell much further. Coinbase ($COIN) and Strategy ($MSTR) dropped roughly 11% to 12%, Robinhood lost about 9% to 10%, and Circle gave up around 9%.
Coinbase had a second problem on its hands, since its third-quarter report landed the same day. Transaction revenue fell 44% to $590M as crypto trading cooled, and adjusted net income came in at about $78M, even though the company said it wasn't affected by the hack.
Strategy holds 848.52K bitcoin, the largest corporate stash, so its stock tends to move like a leveraged bet on the coin itself. Circle was pulled into the story directly, freezing $800M in USDC linked to the theft in coordination with law enforcement, while most of its revenue comes from interest on the reserves backing that stablecoin.
Why some analysts see a buying chance
Not everyone on Wall Street is running for the exits. Cantor Fitzgerald analyst Ramsey El-Assal expects Coinbase, Robinhood and Strategy to recover once the panic fades and said his firm would be buyers on weakness.
"Overall, this is painful, but it is not 2022."
Ramsey El-Assal, Cantor Fitzgerald
TD Cowen's Lance Vitanza said the attack exposed holes in Binance's security and pointed to nothing wrong with bitcoin's underlying technology. Compass Point thinks Binance has enough liquidity to cover customer losses and sees rivals such as Coinbase, Bullish and Hyperliquid picking up business from users who leave.
Some caution remains. Standard Chartered's Geoffrey Kendrick warned the price slide may have further to go, and crypto was already struggling in October as expectations of more Federal Reserve rate hikes in 2026 and worries about AI spending weighed on the market.
How the attack unfolded
Funds started leaving Binance's hot wallets, the internet-connected wallets exchanges use for everyday trading, around 4:20 p.m. ET. Chainalysis estimates that unauthorized transfers totaled about $6.4B across multiple blockchains.
Binance first blamed a compromised employee laptop, and its investigation later uncovered additional points of breach. The attackers never had to crack blockchain encryption, since they got Binance's own systems to approve the withdrawals.
On Ethereum alone, $3.8B was taken across 186 different tokens, and the attackers also walked off with more than 18K bitcoin. Blockchain investigators have tied the attack to TraderTraitor, a North Korean hacking unit the FBI also blamed for the Bybit hack in February 2025.
Binance's Theft Dwarfs Every Recent Exchange Hack
Crypto stolen in major exchange breaches, USD, as of Oct. 30, 2026
Bar chart. Amount Stolen (USD). Binance: Amount Stolen (USD) $6B. Bybit: Amount Stolen (USD) $2B. Bitget: Amount Stolen (USD) $350M.
Source: MarketWatch/Morningstar, AP, Cybersecurity Dive
Racing to freeze the stolen funds
Confirmed blockchain transfers can't be reversed the way a bank transfer can, so exchanges lean on freezes and help from other crypto companies. Stablecoin issuers can block their own tokens, which is why the attackers quickly swapped $325M in stablecoins for $285M in Ethereum.
The freezes still caught a large share. Binance says roughly $3B of the stolen funds has been frozen, with Tether and Circle among the companies that stepped in, although frozen money isn't the same as money returned to customers.
Binance promises to pay customers back
Binance has pledged to reimburse affected customers and set aside more than $6.34B of company funds to do it. About $5B of that is already held in the exact tokens that were stolen, and the rest is being bought through market and over-the-counter channels.
Withdrawals were paused as a precaution, and Binance said they would resume within two days.
Most of Binance's Reserve Is Already in the Stolen Tokens
Binance company funds reserved to cover the hack, USD, as of Oct. 30, 2026
Pie chart. Already held in impacted tokens: USD (Billions) $5. Still being purchased: USD (Billions) $1.3.
$6.34B
Source: MarketWatch/Morningstar, Elliptic
A reimbursement promise still isn't a legal guarantee, though. Daniel Tunkel, a lawyer at Edwin Coe, warned that recovery could come down to what customers were promised in their agreements with the exchange.
What it means for investors
Stock investors have a backstop that crypto holders usually lack. If a US brokerage fails or fraud hits, the Securities Investor Protection Corporation can protect a portfolio up to $500K, while crypto exchanges and wallet providers often carry no federal deposit insurance at all.
Binance isn't the only platform dealing with breaches either. Bitget lost roughly $350M last month, and the repeated breaches keep raising doubts about whether crypto companies are doing enough to protect customer assets.
Fundstrat's Sean Farrell said investors should reassess how much capital they keep on a platform until there's more clarity on how the hack happened, which is a fair test for an industry still trying to win over institutional investors.
