SAND Investment Warning: Upbit, Bithumb Issue Security Caution
SAND Investment Warning: Upbit & Bithumb Flag Security Risk
South Korea's two largest crypto exchanges have escalated their Investment Warning against The Sandbox token following reports of an unresolved Sandbox security breach.
On August 24, 2026, Upbit and Bithumb jointly designated as an Investment Caution Asset, citing unresolved security incidents tied to potential hacks involving its wallets or distributed ledger.
The move follows an earlier trading caution both platforms issued on August 22 after unusual minting activity surfaced on The Sandbox's Base network deployment.
What Triggered The Investment Warning?
The underlying Token Security Incident and Sandbox security breach began when an attacker reportedly gained unauthorized minting permissions on a Base-chain bridge contract linked to The Sandbox.
Key details confirmed so far:
500 million+ SAND tokens were minted abnormally on Base before the figure climbed further, according to on-chain monitoring.
The Sandbox said it identified and fully contained the flaw, adding that Ethereum and Polygon holdings were unaffected.
Bridging between Base and BNB Smart Chain was disabled to isolate the unbacked supply.
No user wallets were reportedly compromised, per the project's own statement.
Because the root cause and full remediation timeline remain unconfirmed, Upbit and Bithumb chose not to wait for a final post-mortem before acting. This is the reasoning behind the fresh Investment Caution Asset label applied on August 24.
Bithumb Review: What Happens Next
Detail | Information |
Designation date | August 24, 2026 |
Exchanges involved | Upbit, Bithumb |
Reason cited | Unresolved security incident, possible wallet/ledger compromise |
Bithumb Review September window | September 28 – October 2, 2026 |
Possible outcomes | Lift caution, extend caution, or terminate trading support |
Bithumb has stated it will use this window to decide whether the Bithumb Suspension-linked caution tag should be removed, extended, or converted into a full delisting.
Upbit has not specified an exact review date but continues to treat the token under heightened monitoring.
Is SAND Safe To Buy Right Now?
Not with full confidence. Until Upbit and Bithumb close their review, carries elevated exchange-level risk.
Traders considering entry should treat this as an unresolved Exchange Warning, watch for The Sandbox's technical post-mortem, and avoid assuming the caution tag will be lifted before early October.
SAND Price Today
According to CoinGecko, The Sandbox was trading near $0.04225, down roughly 3% over 24 hours and about 7.6% over the past week, with a market capitalization close to $124.239 million.
Volatility has stayed elevated since the exploit first surfaced, making it a prominent topic across the latest Crypto news today updates.
Ongoing uncertainty around this Crypto News cycle has prompted major Crypto news outlets.
WuBlockchain to cover the development, posting the caution designation alongside a screenshot of the exchange notices.
Expert Opinion
Analysts tracking South Korean exchange behavior note that Upbit and Bithumb typically use caution-asset tags as a middle-ground response, avoiding an immediate delisting while signaling elevated risk to retail traders.
The SAND Coin News Today cycle suggests both platforms want more clarity on the exploit's root cause before making a permanent call on trading support.
Market watchers say the September 28–October 2 review could set a precedent for how Korean exchanges handle bridge-related exploits going forward, given the growing frequency of cross-chain minting bugs across the industry this year.
Conclusion
The Investment Warning now hinges on one date range: September 28 to October 2, when Bithumb decides whether to lift, extend, or terminate its caution designation.
Until then, both Upbit and Bithumb are treating SAND as a high-risk asset under active review, even though The Sandbox says the core vulnerability has been contained.
Holders and prospective buyers should track official exchange notices closely rather than assume the SAND Investment Asset tag will be resolved quickly, since the final call depends on confirmation of network stability and a full technical post-mortem from the project itself.
Disclaimer: This article is for informational purposes only and does not constitute investment advice. Cryptocurrency markets are highly volatile, and trading status may change further before or after Bithumb's scheduled review. Readers should verify current exchange notices directly and consult a qualified financial advisor before making investment decisions.
