Password managers' promise that they can't see your vaults isn't always true
Over the past 15 years, password managers have grown from a niche security tool used by the technology savvy into an indispensable security tool for the masses, with an estimated 94 million US adults—or roughly 36 percent of them—having adopted them. They store not only passwords for pension, financial, and email accounts, but also cryptocurrency credentials, payment card numbers, and other sensitive data. All eight of the top password managers have adopted the term “zero knowledge” to describe the complex encryption system they use to protect the data vaults that users store on their servers. The definitions vary slightly from [...]