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South Korea May Require 99% Cold Wallet Storage for Crypto Exchanges
South Korea's Financial Services Commission is weighing a rule that would push exchanges to keep nearly all customer crypto offline, up from the current 80% floor.
South Korea's Financial Services Commission (FSC) is considering a rule that would require crypto exchanges to keep about 99% of customer assets in cold wallets, up from the current 80% floor. The proposal, discussed at an emergency meeting with major domestic exchanges on November 2, 2026, has not been finalized, but regulators made clear they want cold storage levels well above what the law currently demands.
If adopted, roughly 99 out of every 100 coins a Korean trader holds on an exchange would sit completely offline, drastically shrinking the target for any would-be attacker.
Why Cold Storage Matters
The difference between a hot wallet and a cold wallet comes down to one thing: internet access. A hot wallet stays connected to the network, which makes it fast and convenient for everyday transactions. It also makes it reachable by hackers. A cold wallet is kept offline and requires more steps to access, which means remote attackers have almost no way to get to it.
South Korea's current 80% cold storage requirement comes from the Virtual Asset User Protection Act, which took effect on July 19, 2024. That rule lets exchanges keep up to 20% of customer holdings in internet-connected wallets. A 99% rule would cut that exposed share to about 1%.
A Binance Breach Accelerated the Timeline
The FSC's urgency follows a reported security incident at Binance involving unauthorized withdrawals from its hot wallets totalling approximately $6.3 billion USD (roughly $8.7 billion CAD at current exchange rates). While South Korean exchanges operate under separate domestic regulations, the incident put cold storage practices under a brighter spotlight globally.
The push also wasn't entirely reactive. Back in February 2026, the FSC had already signalled it would explore moving the cold wallet ratio toward 100% as part of a broader regulatory update. The Binance incident appears to have sped up a conversation that was already in motion.
At the November 2 emergency meeting, regulators reviewed security practices across major domestic exchanges, with topics including tighter access controls, refined withdrawal procedures, and stronger protection for user assets.
Where Korean Exchanges Stand Right Now
Some exchanges are already ahead of where regulators want them to go:
- Upbit held 99.17% of customer assets in cold wallets as of end-September 2026, already above the proposed threshold.
- Bithumb reported 94.76% for the same period, comfortably above the 80% floor but a few points short of 99%.
- Other domestic exchanges showed varying compliance levels with the current rule.
No new mandatory percentage has been written into law yet. A higher threshold remains a priority under review.
Tighter Security Comes With Trade-offs
Moving more assets to cold storage isn't costless. Exchanges that rely on hot wallets for high-frequency withdrawals may face slower processing times and higher operational costs to manage the additional infrastructure. Liquidity could also tighten for platforms that currently run closer to the 80% minimum.
For Canadian crypto holders watching from the sidelines, the South Korean move is worth tracking. Canada's own regulatory framework for crypto exchanges continues to develop through the Canadian Securities Administrators, and cold storage requirements remain a live question for platforms operating here. A major economy mandating near-total offline storage sets a precedent that other regulators may reference as they draft their own rules.