CipherTrace- World's first blockchain forensics team recently released a report that detailed into crypto crime in 2020. It said that the first five months of 2020 has seen a total of $1.36 billion worth of frauds, money stolen and laundering. And with rest of the year left we could see the final number being much higher. Report also says that if the same rate continues we can get very close to the $4.5 billion mark of 2019.

Just today i came across the below tweets that delves into how 3 BTC were stolen from a users account on India's largest cryptocurrency exchange CoinDCX.
Below were CoinDCX response to the matter.
As the saying goes not your keys, not your coins. Never keep your coins on exchanges.