Llixo wrote:
... we would reach the character list to find not our characters but completely different accounts. Now it would mostly be an account to someone in my house, but I've actually had an instance when I was logged into a completely random account...
Personally, I've never logged into a completely random account, just an alt when I selected my main or vice versa. However, I believe this has been an issue that has happened before. I've heard you only see the character screen, but I might've read once or twice about being actually able to log in to that random account completely.
To answer the question, not 100% secure for sure. However, this isn't an issue with the latest launcher, as it is a pre-existing condition.