What event in 2014 drew significant attention to cryptocurrencies, especially Bitcoin?

The event that drew significant attention to cryptocurrencies, especially Bitcoin, in 2014 was the collapse of the largest Bitcoin exchange at the time, Mt. Gox. Mt. Gox filed for bankruptcy in February 2014 after losing approximately 850,000 bitcoins, worth around $473 million at the time, due to a hack. This event raised concerns about the security and regulation of cryptocurrencies, leading to increased scrutiny and media coverage of the industry.