A rounded password text box with four asterisks.

Password Box

A hidden password or a row of three asterisks with a shadow.

Three Asterisks Or Hidden Password

An unhide graphic eye icon for showing passwords.

A rounded rectangle with three asterisks or a hidden password.

A rounded password text box with asterisks next to an open padlock.

A password icon represented by a row of four identical asterisks.

A password column with four short horizontal lines and an eye icon with a slash over it. 

A rounded password box with four asterisks and an eye icon with a slash over it. 

A rectangular password text box with four asterisks.

A hidden password or a row of four dots inside a rectangle.