[tezza]

Security cameras can just record the keys that you type the password in.

If you cover your hand, the problem space is still small enough to guess just based on where you are covering and how long for.

Only systems that do not use passwords are viable if you are being closely scrutinized. e.g. entering only selected characters from your passphrase.

[khandekars]

Thanks. OT: How do we protect from such snooping? I thought that recording the keys was harder for the cameras since the keyboard would be masked by user's height or a partially closed tray. E.g. in a cyber cafe, the keyboard normally is below the tabletop in tray. This is also true of many companies in India, where they use desktops.