have a tiered password scheme.....
one pword for each tier or well, maybe a couple but generally structure it taht way
as u go up tier (toward 1) have there be less accts per password..
no need to go change em all overnight...just start implementing it now and in future
its a scheme i came up with over time....and i also read it somewhere that someone else said its good idea....it just makes sense basically: your most important accts have those password be known by less and less places, reduction of risk where it counts most
Dont paste or write important passwords with the username into any medium, call someone to tell them it.
also dont use a top tier password for ANY other accts than just those top tier / important ones