Bitstamp Hack

Bitstamp Hack (January 2015)

• What happened: Bitstamp, a European cryptocurrency exchange, reported that its hot wallet was breached and roughly 19,000 BTC were stolen. The incident led to a temporary suspension of deposits and trading while the company investigated and rebuilt its systems. The majority of Bitstamp’s funds were stored in offline cold storage. (coindesk.com)
• Attribution: The identity of the attacker has never been publicly disclosed. Investigations referenced by media and security analyses did not culminate in a publicly named individual or group being charged or identified as responsible. The case is typically described as an unknown attacker or an unidentified group. (coindesk.com)
• Aftermath: Bitstamp announced it would compensate affected customers and subsequently rebuilt its platform, including improvements such as multi-signature cold storage solutions and other security enhancements. (coindesk.com)
• Primary sources: Contemporary reporting from CoinDesk and other outlets summarized the figure of “less than 19,000 BTC” lost and described the breach of the hot wallet, with ongoing investigations at the time. (coindesk.com)

Note: If you’re looking for the original CoinDesk report linked in your question, it discussed Bitstamp’s claim of roughly 19,000 BTC lost in the hot wallet hack. (coindesk.com)