WalletGenerator key generation vulnerabilityHappened on May 24th, 2019This project changed ownership approximately two years ago (2017). It was recently brought to attention that the code being served had tried to hide logic to make their RNG deterministic, compromising the integrity of the private keys that were generated.
Looking at the snapshots on the Wayback Machine, we can determine that the malicious behaviour was introduced sometime after 2018/08/17 and definitely by 2018/08/25.