Exploits

Exploit or a crypto exploit/hack describes a way for a 3rd party to extract value from a protocol or person using more technical means (in contrast to social engineering in crypto scams).

Most exploits can be described as malicious, but not all exploits are malicious (see: "Code is law").

Most common types of exploits

Name	Description
Wallet drain	Victim is socially engineered into approving his wallet funds to be spent by a contract, which then drains the approved tokens from the victims wallet
Contract drain	Usually caused by vulnerability in the contracts code, which allows the attacker to drain funds from the contracts address (often leveraging flash loans)
etc

Resources

To explore history and details on hacks and exploits:

https://rekt.news/leaderboard/ (a leaderboard of biggest hacks/exploits in crypto space)

https://twitter.com/zachxbt (on-chain detective, exposing some of the hackers and scammers)