1. Bitcoin Security Factor
related security factors, in the year 2014 ago, there was a massive robbery in one of the Bitcoin buying and selling place in Asia. The event made the world's public doubt the security of Bitcoin. If the world's public doubts the security of Bitcoin, Bitcoin's demand will decline. The decrease in Bitcoin demand will be followed by the decline in Bitcoin prices.
What you're talking about is an exchange disaster. This is just a short-term fundamental catalyst. It's not important. Some of the world's largest and well-known exchanges (like Bitfinex in 2016 and BTC-e in 2017) suffered hacks/losses/takedowns but the market didn't care past a short-term selloff. If it happens in a bull market, the price will keep rising anyway.
Perceptive factors also affect the price of Bitcoin. If Bitcoin gets a better perception, Bitcoin's demand will increase. Followed by the increasing price of Bitcoin. Conversely, if Bitcoin get a bad perception, Bitcoin prices will go down. These perceptions include how perceptions of the ease of using Bitcoin, the perception of how future Bitcoin prices are and the perception of how much profit Bitcoin invests. For information, several years ago, Bitcoin was so synonymous as a means of exchange for buying illegal goods. Over time, these perceptions begin to disappear.
3. Official Bank Recognition Factor
Some countries do not recognize Bitcoin as a legal means of payment. If the central bank recognizes Bitcoin as a legitimate means of payment, Bitcoin's demand will surely increase. Bitcoin's increased demand is followed by higher Bitcoin prices.
These have some underlying fundamental effect, sure. But what I find is much more important is determining by chart analysis whether the market is in accumulation or distribution, so I can ride the trend.
Fundamentals provide a baseline to work from. They provide basis for a long term trend. But fundamentals can become very far-removed from price, in both directions. This is why people say "the market can stay irrational longer than you can stay solvent." Technicals are far more important for traders.