How two Ethereum ERC20 contracts got hacked

Ths situation is quite simple, today developers have no clue how data structures work in memory and this is a typical case of it. Any C developer has knowlidge about this, but if you are floating in space and can see actual memory just as a blue planet far away, this is the result. But I bet someone will say that garbage collector would solve the issue :D :D :D

Hi HN,<p>Yesterday trading on several tokens got halted due to discovered &amp; exploited vulnerabilities in two smart contracts. One of them lost about 90% of its value… and another one lost 26% - $40,000,000 in market cap. in<p>We wanted to focus more on the technical analysis of the situation to shed some light on common vulnerabilities that still abound.<p>Would love your feedback, since we got some mixed reviews on whether we did a correct technical judgment of one of the contracts.