[fpc-pascal] Is it necessary to protect passed passwords in memory?

[Johannes Nohl]

> And where do you think the phrase 'My Secret Password' would be stored
> other than memory?

so you have to override variables after use? like

var pwd: array[0..15] of char;
     xpwd: string;

[...]

readln(pwd);
xpwd := encrypt(pwd);
pwd := '123456789012345'; // override

[...]

???