Hackers Demand 10% From Blockstream, Threaten 15% Losses

Hackers demanded a 10% payout from Bitcoin infrastructure firm Blockstream and warned that holders could suffer about 15% losses if their demand is not met.

The extortion claim appeared in recent messages circulated online and targets Blockstream with a specific financial demand and a threat of measurable losses to investors or users tied to the company’s services.

The group behind the demand has not identified itself. The messages demanded a payment equal to 10% of an unspecified fund or asset and asserted that failure to pay would result in actions that could reduce value for holders by around 15%. The communications did not describe the mechanism for producing those losses.

Blockstream is a private company that develops Bitcoin infrastructure, including the Liquid sidechain and satellite services that broadcast the Bitcoin blockchain. The firm does not operate a public token; references to “holders” in the messages appear to mean investors, customers or counterparties with exposure to Blockstream products rather than holders of a tradable coin.

Cyber extortion attempts against cryptocurrency firms, custodians and infrastructure providers have increased in recent years. Attackers frequently demand payments in cryptocurrency and threaten data leaks, service disruption or coordinated market actions. The 15% figure in this case was not accompanied by verifiable evidence or a clear plan.

Security specialists recommend reporting extortion attempts to law enforcement and engaging forensic teams to check whether data or systems were compromised. Organizations face decisions about whether to pay, negotiate or pursue containment, and each option carries legal and financial trade-offs.

The messages referenced potential losses rather than specific operational steps, leaving the scale and likelihood of the claimed impact unclear. Any disruption or reputational damage to a firm that supports trading, custody or settlement functions can affect counterparties and clients with exposure to its systems.