Chrome Extension Stealing Cryptocurrency Keys and Passwords
A malicious Chrome extension surreptitiously steals Ethereum keys and passwords:
According to Denley, the extension is dangerous to users in two ways. First, any funds (ETH coins and ERC0-based tokens) managed directly inside the extension are at risk.
Denley says that the extension sends the private keys of all wallets created or managed through its interface to a third-party website located at erc20wallet[.]tk.
Another example of how blockchain requires many single points of trust in order to be secure.