Cyber Incident Victim: Bitstamp
Date:
Jan 2014
Location:
Slovenia
Summary
Bitcoin experienced denial-of-service attacks involving mutated code injections that disrupted transaction confirmations, temporarily halting customer withdrawals at multiple exchanges including Bitstamp. The attacks prevented users from accessing affected bitcoins during transactions but did not compromise wallets or funds, primarily impacting those conducting frequent transfers. Core developers worked to resolve the issue while the disruptions contributed to significant price volatility, with Bitcoin's value dropping sharply across exchanges. Concurrently, regulatory developments emerged as authorities in Canada and New York proposed stricter oversight of virtual currencies, focusing on anti-money laundering controls and consumer protection frameworks.
| CIA Posture | Motives | Tactics, Techniques & Procedures |
|---|---|---|
| Available to members | 1 motive | 1 technique |
| Threat Actors | Type | Location |
|---|---|---|
| 0 actors | Available to members | Available to members |
Description
In February 2014, Bitcoin experienced a series of denial-of-service (DoS) attacks targeting the program underlying the virtual currency. According to the Bitcoin Foundation, unidentified hackers injected mutated lines of code into Bitcoin's software, disrupting transaction confirmations without compromising wallets or stealing funds. The attacks specifically impacted users conducting multiple transactions in rapid succession, causing their bitcoins to appear temporarily "tied up" and preventing withdrawals. Slovenia-based exchange Bitstamp suspended customer withdrawals on February 11, citing inconsistent results stemming from the attack, following a similar indefinite withdrawal halt by Mt. Gox the previous day. Core Bitcoin developers worked to resolve the technical vulnerabilities while exchanges implemented operational pauses to contain transaction irregularities. Market reactions intensified as these disruptions coincided with regulatory scrutiny, driving Bitcoin's price down 6% to $645 on Bitstamp's platform and creating significant price disparities across exchanges.
The operational disruptions occurred alongside heightened regulatory attention. On February 11, Canadian authorities announced plans to strengthen anti-money laundering and counter-terrorist financing oversight for virtual currencies. Simultaneously, New York's Department of Financial Services Superintendent Benjamin Lawsky outlined forthcoming regulations including consumer disclosure requirements, capital standards, and a "BitLicense" framework for virtual currency businesses. Lawsky's agency was evaluating whether to restrict "tumblers" – tools that obscure transaction histories – due to law enforcement concerns, while acknowledging their potential legitimate uses. These regulatory developments followed late-January hearings in New York involving prosecutors, industry participants like the Winklevoss twins, and other stakeholders. The combined technical and regulatory pressures contributed to Bitcoin's price volatility, with Mt. Gox's prolonged withdrawal suspension exacerbating market instability during the attack period.