Binance has removed API keys linked to SignalPlus, describing the action as a precaution after a reported security issue at the Hong Kong-based trading tools platform.
What happened
The move targets the connection between Binance accounts and SignalPlus rather than users' funds directly. SignalPlus customers use these keys to link their exchange accounts to the platform, allowing them to trade spot, futures, and options through SignalPlus tools while their assets remain on the exchange.
Removing the keys severs that link. Any automated strategy running through SignalPlus on Binance would stop working until users establish a fresh connection.
Binance's terms permit the exchange to suspend API keys when security concerns arise, and the exchange advises users to delete compromised keys immediately. In this case, it effectively did so on their behalf.
So far there has been no significant market disruption or price impact tied to the revocation.
Who is SignalPlus
SignalPlus is a fintech company founded in 2021 and based in Hong Kong. It builds AI-enabled trading tools for digital assets, with a product lineup that includes options pricing, analytics, automated market-making robots, and execution algorithms.
The company has raised $73 million across several funding rounds, the most recent being a $50 million Series B in 2026. SignalPlus integrates with multiple exchanges, including Binance, and its own documentation walks users through creating Binance API keys step by step. Those tutorials recommend IP whitelisting alongside trading permissions, meaning a key only works when requests come from approved internet addresses.
SignalPlus has also highlighted its security credentials, holding ISO/IEC 27001 and SOC 2 certifications and receiving an A+ rating in penetration testing.
What this means
For SignalPlus users, the immediate cost is operational. Automated strategies on Binance would need new keys before they could run again. Anyone who reconnects will likely want to check what permissions those keys carry and whether whitelisting is enabled.
For SignalPlus, the episode is a test of the credentials it has promoted. The company raised its $50 million Series B this year partly on the strength of its tooling.
What to watch next: whether SignalPlus publishes an account of the incident, whether other exchanges take similar steps, and how quickly Binance users can reconnect.
