These breaches are just some as recent as two years.
Why only in the past 2 years, when we know that such things have been happening since 2012, and despite that, the majority have not yet learned any lesson from all this. I would say that crazy/suicidal moves are something that people do constantly, because they keep repeating the same things, which means that they are consciously harming themselves.
There is an old saying that says
"Fool me once, shame on you; fool me twice, shame on me."2022, November 12 FTX Unauthorized transactions $600 million
2022, January 17 Crypto.com Unknown $34 million
2021, December 11 AscendEX Obtained access to hot wallet $80 million
2021, December 5 BitMart Obtained access to hot wallet $150 million
2021, August 19 Liquid Obtained access to hot wallet $97 million
2021, April 29 Hotbit Obtained access to hot wallet Nil
2020, December 23 Livecoin Compromised system/servers Unknown
2020, December 21 EXMO Obtained access to hot wallet $4 million
2020, December 1 BTC Markets Internal staff error/mistake 270,000 user's private details
2020, September 25 KuCoin Data leak $275 million
2020, July 11 Cashaa Malware $3.1 million
2020, June 29 Balancer Vulnerability in protocol $500,000
2020, April 19 Lendf.me Bugs and Re-entrancy attack $24.5 million
2020, April 19 Uniswap Bugs and Re-entrancy attack $500,000
2020, February 5 Altsbit Obtained access to hot wallet $70,000
2019, December 19 Youbit Obtained access to hot wallet Unknown
2019, November 26 Upbit Obtained access to hot wallet $49 million
2019, November 5 Vindax Unknown $500,000
2019, July 11 Bitpoint Compromised system/servers $32 million
2019, June 27 Bitrue Compromised system/servers $4.5 million
2019, June 6 Gatehub Unknown $9.5 million
2019, May 7 Binance Obtained access to hot wallet $40 million
2019, March 29 Bithumb Unknown $29 million
2019, March 25 Coinbene Suspected trusted insider $40 million
2019, March 24 DragonEX Unknown $1 million
2019, February 15 Coinmama Data leak 450,000 user's private details
2019, February 1 Cryptopia Unknown $16 million
2019, January 26 LocalBitcoins Phishing data on fake site $27,000
2018, October 28 Maplechange Suspected trusted insider $51,000
2018, September 14 Zaif Obtained access to hot wallet $60 million
2018, June 18 Bithumb Unknown $31 million
2018, June 10 Coinrail Unknown $40 million
2018, April 13 CoinSecure Suspected trusted insider $3.5 million
2018, February 10 Bitgrail Suspected trusted insider $146 million
2018, January 27 CoinCheck Unknown $560 million
2017, December 20 EtherDelta Server DNS compromised $1.4 million
2017, July 5 Bithumb Unknown $7 million
2017, April 22 Yapizon Obtained access to hot wallet $5.3 million
2016, August 2 Bitfinex Unknown $623 million
2016, May 9 Gatecoin Obtained access to hot wallet $2.14 million
2016, April 7-9 Shapeshift Suspected trusted insider $230,000
2016, February 16 BTER Unknown $1.75 million
2015, December 11 Bitstamp Malware $5 million
2015, August 15 BTER Suspected trusted insider $1.65 million
2014, July 13 Mintpal Obtained access to hot wallet $2 million
2014, March 4 Poloniex Obtained access to hot wallet $50,000
2014, February Mt. Gox Various methods $460 million
2013, November 11 Bitcash Compromised system/servers $100,000
2012, September 12 Bitfloor Compromised system/servers $250,000
2012, March 1 Bitcoinica Compromised system/servers $87,000
Source