The acceptance of "zero confirmation transaction" is rising, is "zero confirmation transaction" really safe?

You actually think that the blockchain is more secure, I am also drunk

Blockchain security report for the first half of 2018, telling you the three root causes of security problems

Chain circle must-read: understand the 6 major categories of blockchain security and 3 major problems in one article

Regarding the blockchain, what are the security issues that cannot be ignored?