ChainCatcher message, Slow Mist founder Cosine posted on social media to alert users of Seif Wallet that a small portion of private keys and passwords have been collected by the built-in third-party analytics platform in the wallet. Fortunately, this was discovered and reported by white hats. It doesn't seem like the third-party analytics platform is malicious; it feels similar to previous cases: mistakenly using Sentry to collect overly sensitive information that shouldn't have been collected.