Crypto lost more than $240 million across 29 incidents in July 2026, up roughly 216% from June's $75.87M, even as the number of attacks fell from 40 to 29. For the second month running, the damage didn't come from clever contract exploits. The same failure class ran through Web2, from a $12.3M rail-industry ransom to a 1TB bank breach that started with one employee's email. Here's the month in security 👇
Composability allows for DeFi projects to leverage one another to create powerful new functionality. However this composability also introduces more risk. These issues have existed for a while, but have been made easier to exploit through the introduction of flash loans. While flash loans themselves do not introduce new vulnerabilities, they level the playing field for attacks which previously required large amounts of capital.
Quantstamp provides readers with insightful information concerning the bZx hacks.
Quantstamp is proud to be a Cypher sponsor of ETHDenver. This will also mark the third time we participate in the hackathon (we have attended the event every time!).
The recent Istanbul hard fork in December affected some important smart contracts deployed on Ethereum mainnet. Thankfully, major projects such as Kyber were prepared and migrated to new contracts before the fork, but many developers are still unaware of the impact the Istanbul hard fork may have on both smart contract development and previously deployed contracts.
OmiseGO's More Viable Plasma added features to plasma designed to enhance user experience.
Maker set the foundation for the DeFi ecosystem by creating DAI, but their impact does not end there. They facilitating the success of future DeFi rockstars and Quantstamp is providing the security.
2019 was a great year for Quantstamp. We released a book on smart contract security, helped push forward the DeFi movement through some key audits, launched our Bounty Protocol, expanded our presence into new markets, and more.
Quantstamp recently enhanced the security of Nuo’s xSplit smart contracts, which serve to provide Nuo customers with the best prices possible by splitting customer orders across various exchanges. Nuo is a repeat customer of Quantstamp: their first audit was completed this April.
A comprehensive test suite can prevent developers from accidentally merging functionality bugs into the master branch.
