As reported by CoinDesk, a total of 153,000 ethers were drained on July 19 due to a security bug in multi-signature wallet software offered by the startup, UK-based Parity Technologies. In a blog post yesterday, Parity went so far as to warn users that the bug was "critical," advising them to take steps to safeguard their funds while the issue was resolved. More info: http://cur.lv/161vl5